The compound described by Sr5La5Cu(NiO5)4 is (La,Ba)CuO4-derived structured and crystallizes in the triclinic P1 space group. There are five inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(13), one O(16), one O(2), one O(20), one O(3), one O(4), one O(5), one O(6), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(13), one O(17), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(14), one O(17), one O(20), one O(4), and one O(9) atom. In the fourth Sr site, Sr(4) is bonded in a 9-coordinate geometry to one O(13), one O(14), one O(15), one O(16), one O(17), one O(18), one O(20), one O(5), and one O(8) atom. In the fifth Sr site, Sr(5) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(15), one O(18), one O(19), one O(2), one O(20), and one O(3) atom. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(15), one O(16), one O(19), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(19), one O(3), one O(6), one O(7), one O(8), and one O(9) atom. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(14), one O(15), one O(3), one O(4), and one O(7) atom. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(15), one O(16), one O(17), one O(18), one O(19), one O(7), and one O(8) atom. In the fifth La site, La(5) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(17), one O(18), one O(19), one O(2), one O(20), one O(5), and one O(9) atom. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(9) atom to form NiO6 octahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-6°. In the second Ni site, Ni(2) is bonded to one O(13), one O(14), one O(4), one O(6), one O(7), and one O(8) atom to form NiO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. In the third Ni site, Ni(3) is bonded to one O(10), one O(11), one O(12), one O(17), one O(18), and one O(8) atom to form NiO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-6°. In the fourth Ni site, Ni(4) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(20) atom to form NiO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-8°. Cu(1) is bonded to one O(1), one O(16), one O(18), one O(19), one O(5), and one O(6) atom to form CuO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and  a cornercorner with one Ni(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-8°. There are twenty inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), one Sr(5), one La(2), one La(5), one Ni(1), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(11)Sr2La3Ni octahedra, corners with two equivalent O(17)Sr3La2Ni octahedra, corners with two equivalent O(20)Sr4LaNi octahedra, corners with two equivalent O(7)SrLa4Ni octahedra,  an edgeedge with one O(12)Sr2La2Ni2 octahedra,  an edgeedge with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(9)Sr3La2Ni octahedra, and  a faceface with one O(19)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the second O site, O(2) is bonded to one Sr(1), one Sr(5), one La(1), one La(5), one Ni(1), and one Ni(4) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with three equivalent O(5)Sr3La2Cu octahedra, corners with three equivalent O(19)SrLa4Cu octahedra,  an edgeedge with one O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(9)Sr3La2Ni octahedra, and  a faceface with one O(20)Sr4LaNi octahedra. The corner-sharing octahedral tilt angles range from 3-55°. In the third O site, O(3) is bonded to one Sr(1), one Sr(5), one La(1), one La(2), one La(3), and one Ni(1) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with three equivalent O(6)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra, and  a faceface with one O(4)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-55°. In the fourth O site, O(4) is bonded to one Sr(1), one Sr(3), one La(1), one La(3), one Ni(1), and one Ni(2) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(11)Sr2La3Ni octahedra, corners with two equivalent O(15)Sr2La3Ni octahedra, corners with two equivalent O(5)Sr3La2Cu octahedra, corners with two equivalent O(20)Sr4LaNi octahedra,  an edgeedge with one O(16)Sr2La2CuNi octahedra,  an edgeedge with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(9)Sr3La2Ni octahedra,  a faceface with one O(13)Sr4LaNi octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 4-56°. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(4), one La(1), one La(5), and one Cu(1) atom to form distorted OSr3La2Cu octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(2)Sr2La2Ni2 octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra, and  a faceface with one O(6)Sr2La2CuNi octahedra. The corner-sharing octahedral tilt angles range from 1-53°. In the sixth O site, O(6) is bonded to one Sr(1), one Sr(2), one La(1), one La(2), one Ni(2), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with three equivalent O(3)Sr2La3Ni octahedra, corners with three equivalent O(9)Sr3La2Ni octahedra,  an edgeedge with one O(10)Sr2La2Ni2 octahedra,  an edgeedge with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(13)Sr4LaNi octahedra,  a faceface with one O(19)SrLa4Cu octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 6-56°. In the seventh O site, O(7) is bonded to one Sr(2), one La(1), one La(2), one La(3), one La(4), and one Ni(2) atom to form distorted OSrLa4Ni octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with three equivalent O(10)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-55°. In the eighth O site, O(8) is bonded to one Sr(2), one Sr(4), one La(2), one La(4), one Ni(2), and one Ni(3) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(15)Sr2La3Ni octahedra, corners with two equivalent O(5)Sr3La2Cu octahedra, corners with two equivalent O(9)Sr3La2Ni octahedra, corners with two equivalent O(19)SrLa4Cu octahedra,  an edgeedge with one O(1)Sr2La2CuNi octahedra,  an edgeedge with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(17)Sr3La2Ni octahedra,  a faceface with one O(13)Sr4LaNi octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 5-56°. In the ninth O site, O(9) is bonded to one Sr(1), one Sr(2), one Sr(3), one La(2), one La(5), and one Ni(1) atom to form distorted OSr3La2Ni octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(6)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra, and  a faceface with one O(4)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-55°. In the tenth O site, O(10) is bonded to one Sr(2), one Sr(3), one La(2), one La(3), one Ni(1), and one Ni(3) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with three equivalent O(13)Sr4LaNi octahedra, corners with three equivalent O(7)SrLa4Ni octahedra,  an edgeedge with one O(6)Sr2La2CuNi octahedra,  an edgeedge with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(17)Sr3La2Ni octahedra, and  a faceface with one O(9)Sr3La2Ni octahedra. The corner-sharing octahedral tilt angles range from 3-57°. In the eleventh O site, O(11) is bonded to one Sr(3), one Sr(5), one La(2), one La(3), one La(4), and one Ni(3) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with three equivalent O(14)Sr2La2Ni2 octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the twelfth O site, O(12) is bonded to one Sr(3), one Sr(5), one La(3), one La(5), one Ni(3), and one Ni(4) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(3)Sr2La3Ni octahedra, corners with two equivalent O(9)Sr3La2Ni octahedra, corners with two equivalent O(13)Sr4LaNi octahedra, corners with two equivalent O(19)SrLa4Cu octahedra,  an edgeedge with one O(1)Sr2La2CuNi octahedra,  an edgeedge with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(17)Sr3La2Ni octahedra, and  a faceface with one O(20)Sr4LaNi octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the thirteenth O site, O(13) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one La(3), and one Ni(2) atom to form distorted OSr4LaNi octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with three equivalent O(10)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-54°. In the fourteenth O site, O(14) is bonded to one Sr(3), one Sr(4), one La(3), one La(4), one Ni(2), and one Ni(4) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with three equivalent O(11)Sr2La3Ni octahedra, corners with three equivalent O(17)Sr3La2Ni octahedra,  an edgeedge with one O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(13)Sr4LaNi octahedra,  a faceface with one O(20)Sr4LaNi octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 3-55°. In the fifteenth O site, O(15) is bonded to one Sr(4), one Sr(5), one La(1), one La(3), one La(4), and one Ni(4) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra, and  a faceface with one O(2)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-56°. In the sixteenth O site, O(16) is bonded to one Sr(1), one Sr(4), one La(1), one La(4), one Ni(4), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra, corners with two equivalent O(3)Sr2La3Ni octahedra, corners with two equivalent O(17)Sr3La2Ni octahedra, corners with two equivalent O(13)Sr4LaNi octahedra, corners with two equivalent O(7)SrLa4Ni octahedra,  an edgeedge with one O(4)Sr2La2Ni2 octahedra,  an edgeedge with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(20)Sr4LaNi octahedra, and  a faceface with one O(19)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the seventeenth O site, O(17) is bonded to one Sr(2), one Sr(3), one Sr(4), one La(4), one La(5), and one Ni(3) atom to form distorted OSr3La2Ni octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with three equivalent O(14)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the eighteenth O site, O(18) is bonded to one Sr(4), one Sr(5), one La(4), one La(5), one Ni(3), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with three equivalent O(15)Sr2La3Ni octahedra, corners with three equivalent O(20)Sr4LaNi octahedra,  an edgeedge with one O(14)Sr2La2Ni2 octahedra,  an edgeedge with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(17)Sr3La2Ni octahedra, and  a faceface with one O(19)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 3-56°. In the nineteenth O site, O(19) is bonded to one Sr(5), one La(1), one La(2), one La(4), one La(5), and one Cu(1) atom to form distorted OSrLa4Cu octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(2)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra, and  a faceface with one O(6)Sr2La2CuNi octahedra. The corner-sharing octahedral tilt angles range from 1-53°. In the twentieth O site, O(20) is bonded to one Sr(1), one Sr(3), one Sr(4), one Sr(5), one La(5), and one Ni(4) atom to form distorted OSr4LaNi octahedra that share  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with three equivalent O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra, and  a faceface with one O(2)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-57°. is represented by the CIF card [CIF]
data_Sr5La5Cu(NiO5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.326
_cell_length_b   8.653
_cell_length_c   6.853
_cell_angle_alpha   112.300
_cell_angle_beta   106.438
_cell_angle_gamma   26.525
_symmetry_Int_Tables_number   1
_cell_volume   469.098
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Sr  Sr0  1  0.129  0.358  0.718  1.0
  Sr  Sr1  1  0.329  0.356  0.718  1.0
  Sr  Sr2  1  0.527  0.363  0.718  1.0
  Sr  Sr3  1  0.728  0.359  0.718  1.0
  Sr  Sr4  1  0.872  0.641  0.286  1.0
  La  La5  1  0.073  0.636  0.274  1.0
  La  La6  1  0.270  0.647  0.277  1.0
  La  La7  1  0.473  0.638  0.279  1.0
  La  La8  1  0.672  0.644  0.278  1.0
  La  La9  1  0.927  0.364  0.728  1.0
  Cu  Cu10  1  0.000  0.997  0.993  1.0
  Ni  Ni11  1  0.201  0.996  0.994  1.0
  Ni  Ni12  1  0.401  0.997  0.996  1.0
  Ni  Ni13  1  0.599  0.999  0.993  1.0
  Ni  Ni14  1  0.800  0.999  0.000  1.0
  O  O15  1  0.099  0.001  1.000  1.0
  O  O16  1  0.999  0.504  0.005  1.0
  O  O17  1  0.178  0.140  0.327  1.0
  O  O18  1  0.303  0.002  0.010  1.0
  O  O19  1  0.033  0.835  0.650  1.0
  O  O20  1  0.198  0.508  0.016  1.0
  O  O21  1  0.373  0.147  0.325  1.0
  O  O22  1  0.496  0.006  0.010  1.0
  O  O23  1  0.225  0.846  0.654  1.0
  O  O24  1  0.399  0.504  0.003  1.0
  O  O25  1  0.557  0.180  0.325  1.0
  O  O26  1  0.701  0.004  0.003  1.0
  O  O27  1  0.435  0.829  0.660  1.0
  O  O28  1  0.603  0.496  0.011  1.0
  O  O29  1  0.765  0.168  0.321  1.0
  O  O30  1  0.896  0.009  0.017  1.0
  O  O31  1  0.642  0.818  0.655  1.0
  O  O32  1  0.798  0.505  0.001  1.0
  O  O33  1  0.966  0.169  0.352  1.0
  O  O34  1  0.834  0.834  0.685  1.0
[/CIF]
.
The compound described by Sr5La5Cu(NiO5)4 is (La,Ba)CuO4-derived structured and crystallizes in the triclinic P1 space group. There are five inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(13), one O(16), one O(2), one O(20), one O(3), one O(4), one O(5), one O(6), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(13), one O(17), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(14), one O(17), one O(20), one O(4), and one O(9) atom. In the fourth Sr site, Sr(4) is bonded in a 9-coordinate geometry to one O(13), one O(14), one O(15), one O(16), one O(17), one O(18), one O(20), one O(5), and one O(8) atom. In the fifth Sr site, Sr(5) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(15), one O(18), one O(19), one O(2), one O(20), and one O(3) atom. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(15), one O(16), one O(19), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(19), one O(3), one O(6), one O(7), one O(8), and one O(9) atom. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(14), one O(15), one O(3), one O(4), and one O(7) atom. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(15), one O(16), one O(17), one O(18), one O(19), one O(7), and one O(8) atom. In the fifth La site, La(5) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(17), one O(18), one O(19), one O(2), one O(20), one O(5), and one O(9) atom. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(9) atom to form NiO6 octahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-6°. In the second Ni site, Ni(2) is bonded to one O(13), one O(14), one O(4), one O(6), one O(7), and one O(8) atom to form NiO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-8°. In the third Ni site, Ni(3) is bonded to one O(10), one O(11), one O(12), one O(17), one O(18), and one O(8) atom to form NiO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-6°. In the fourth Ni site, Ni(4) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(20) atom to form NiO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and  a cornercorner with one Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-8°. Cu(1) is bonded to one O(1), one O(16), one O(18), one O(19), one O(5), and one O(6) atom to form CuO6 octahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and  a cornercorner with one Ni(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-8°. There are twenty inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), one Sr(5), one La(2), one La(5), one Ni(1), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(11)Sr2La3Ni octahedra, corners with two equivalent O(17)Sr3La2Ni octahedra, corners with two equivalent O(20)Sr4LaNi octahedra, corners with two equivalent O(7)SrLa4Ni octahedra,  an edgeedge with one O(12)Sr2La2Ni2 octahedra,  an edgeedge with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(9)Sr3La2Ni octahedra, and  a faceface with one O(19)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the second O site, O(2) is bonded to one Sr(1), one Sr(5), one La(1), one La(5), one Ni(1), and one Ni(4) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with three equivalent O(5)Sr3La2Cu octahedra, corners with three equivalent O(19)SrLa4Cu octahedra,  an edgeedge with one O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(9)Sr3La2Ni octahedra, and  a faceface with one O(20)Sr4LaNi octahedra. The corner-sharing octahedral tilt angles range from 3-55°. In the third O site, O(3) is bonded to one Sr(1), one Sr(5), one La(1), one La(2), one La(3), and one Ni(1) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with three equivalent O(6)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra, and  a faceface with one O(4)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-55°. In the fourth O site, O(4) is bonded to one Sr(1), one Sr(3), one La(1), one La(3), one Ni(1), and one Ni(2) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(11)Sr2La3Ni octahedra, corners with two equivalent O(15)Sr2La3Ni octahedra, corners with two equivalent O(5)Sr3La2Cu octahedra, corners with two equivalent O(20)Sr4LaNi octahedra,  an edgeedge with one O(16)Sr2La2CuNi octahedra,  an edgeedge with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(9)Sr3La2Ni octahedra,  a faceface with one O(13)Sr4LaNi octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 4-56°. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(4), one La(1), one La(5), and one Cu(1) atom to form distorted OSr3La2Cu octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(2)Sr2La2Ni2 octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra, and  a faceface with one O(6)Sr2La2CuNi octahedra. The corner-sharing octahedral tilt angles range from 1-53°. In the sixth O site, O(6) is bonded to one Sr(1), one Sr(2), one La(1), one La(2), one Ni(2), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with three equivalent O(3)Sr2La3Ni octahedra, corners with three equivalent O(9)Sr3La2Ni octahedra,  an edgeedge with one O(10)Sr2La2Ni2 octahedra,  an edgeedge with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(13)Sr4LaNi octahedra,  a faceface with one O(19)SrLa4Cu octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 6-56°. In the seventh O site, O(7) is bonded to one Sr(2), one La(1), one La(2), one La(3), one La(4), and one Ni(2) atom to form distorted OSrLa4Ni octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with three equivalent O(10)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-55°. In the eighth O site, O(8) is bonded to one Sr(2), one Sr(4), one La(2), one La(4), one Ni(2), and one Ni(3) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(15)Sr2La3Ni octahedra, corners with two equivalent O(5)Sr3La2Cu octahedra, corners with two equivalent O(9)Sr3La2Ni octahedra, corners with two equivalent O(19)SrLa4Cu octahedra,  an edgeedge with one O(1)Sr2La2CuNi octahedra,  an edgeedge with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(17)Sr3La2Ni octahedra,  a faceface with one O(13)Sr4LaNi octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 5-56°. In the ninth O site, O(9) is bonded to one Sr(1), one Sr(2), one Sr(3), one La(2), one La(5), and one Ni(1) atom to form distorted OSr3La2Ni octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(6)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra, and  a faceface with one O(4)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-55°. In the tenth O site, O(10) is bonded to one Sr(2), one Sr(3), one La(2), one La(3), one Ni(1), and one Ni(3) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with three equivalent O(13)Sr4LaNi octahedra, corners with three equivalent O(7)SrLa4Ni octahedra,  an edgeedge with one O(6)Sr2La2CuNi octahedra,  an edgeedge with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(3)Sr2La3Ni octahedra,  a faceface with one O(17)Sr3La2Ni octahedra, and  a faceface with one O(9)Sr3La2Ni octahedra. The corner-sharing octahedral tilt angles range from 3-57°. In the eleventh O site, O(11) is bonded to one Sr(3), one Sr(5), one La(2), one La(3), one La(4), and one Ni(3) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with three equivalent O(14)Sr2La2Ni2 octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the twelfth O site, O(12) is bonded to one Sr(3), one Sr(5), one La(3), one La(5), one Ni(3), and one Ni(4) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(3)Sr2La3Ni octahedra, corners with two equivalent O(9)Sr3La2Ni octahedra, corners with two equivalent O(13)Sr4LaNi octahedra, corners with two equivalent O(19)SrLa4Cu octahedra,  an edgeedge with one O(1)Sr2La2CuNi octahedra,  an edgeedge with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(17)Sr3La2Ni octahedra, and  a faceface with one O(20)Sr4LaNi octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the thirteenth O site, O(13) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one La(3), and one Ni(2) atom to form distorted OSr4LaNi octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with three equivalent O(10)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-54°. In the fourteenth O site, O(14) is bonded to one Sr(3), one Sr(4), one La(3), one La(4), one Ni(2), and one Ni(4) atom to form distorted OSr2La2Ni2 octahedra that share  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra, corners with three equivalent O(11)Sr2La3Ni octahedra, corners with three equivalent O(17)Sr3La2Ni octahedra,  an edgeedge with one O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(4)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(13)Sr4LaNi octahedra,  a faceface with one O(20)Sr4LaNi octahedra, and  a faceface with one O(7)SrLa4Ni octahedra. The corner-sharing octahedral tilt angles range from 3-55°. In the fifteenth O site, O(15) is bonded to one Sr(4), one Sr(5), one La(1), one La(3), one La(4), and one Ni(4) atom to form distorted OSr2La3Ni octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(16)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra, and  a faceface with one O(2)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-56°. In the sixteenth O site, O(16) is bonded to one Sr(1), one Sr(4), one La(1), one La(4), one Ni(4), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra, corners with two equivalent O(3)Sr2La3Ni octahedra, corners with two equivalent O(17)Sr3La2Ni octahedra, corners with two equivalent O(13)Sr4LaNi octahedra, corners with two equivalent O(7)SrLa4Ni octahedra,  an edgeedge with one O(4)Sr2La2Ni2 octahedra,  an edgeedge with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(6)Sr2La2CuNi octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra,  a faceface with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(15)Sr2La3Ni octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(20)Sr4LaNi octahedra, and  a faceface with one O(19)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 4-55°. In the seventeenth O site, O(17) is bonded to one Sr(2), one Sr(3), one Sr(4), one La(4), one La(5), and one Ni(3) atom to form distorted OSr3La2Ni octahedra that share  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(20)Sr4LaNi octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(16)Sr2La2CuNi octahedra, corners with three equivalent O(14)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra,  a faceface with one O(10)Sr2La2Ni2 octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra, and  a faceface with one O(8)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the eighteenth O site, O(18) is bonded to one Sr(4), one Sr(5), one La(4), one La(5), one Ni(3), and one Cu(1) atom to form distorted OSr2La2CuNi octahedra that share  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra,  a cornercorner with one O(19)SrLa4Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with three equivalent O(15)Sr2La3Ni octahedra, corners with three equivalent O(20)Sr4LaNi octahedra,  an edgeedge with one O(14)Sr2La2Ni2 octahedra,  an edgeedge with one O(2)Sr2La2Ni2 octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(8)Sr2La2Ni2 octahedra,  a faceface with one O(11)Sr2La3Ni octahedra,  a faceface with one O(5)Sr3La2Cu octahedra,  a faceface with one O(17)Sr3La2Ni octahedra, and  a faceface with one O(19)SrLa4Cu octahedra. The corner-sharing octahedral tilt angles range from 3-56°. In the nineteenth O site, O(19) is bonded to one Sr(5), one La(1), one La(2), one La(4), one La(5), and one Cu(1) atom to form distorted OSrLa4Cu octahedra that share  a cornercorner with one O(1)Sr2La2CuNi octahedra,  a cornercorner with one O(18)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(14)Sr2La2Ni2 octahedra,  a cornercorner with one O(4)Sr2La2Ni2 octahedra,  a cornercorner with one O(11)Sr2La3Ni octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(3)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(7)SrLa4Ni octahedra, corners with two equivalent O(12)Sr2La2Ni2 octahedra, corners with two equivalent O(8)Sr2La2Ni2 octahedra, corners with three equivalent O(2)Sr2La2Ni2 octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(20)Sr4LaNi octahedra,  an edgeedge with one O(7)SrLa4Ni octahedra,  a faceface with one O(1)Sr2La2CuNi octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(18)Sr2La2CuNi octahedra, and  a faceface with one O(6)Sr2La2CuNi octahedra. The corner-sharing octahedral tilt angles range from 1-53°. In the twentieth O site, O(20) is bonded to one Sr(1), one Sr(3), one Sr(4), one Sr(5), one La(5), and one Ni(4) atom to form distorted OSr4LaNi octahedra that share  a cornercorner with one O(6)Sr2La2CuNi octahedra,  a cornercorner with one O(10)Sr2La2Ni2 octahedra,  a cornercorner with one O(12)Sr2La2Ni2 octahedra,  a cornercorner with one O(2)Sr2La2Ni2 octahedra,  a cornercorner with one O(8)Sr2La2Ni2 octahedra,  a cornercorner with one O(15)Sr2La3Ni octahedra,  a cornercorner with one O(5)Sr3La2Cu octahedra,  a cornercorner with one O(17)Sr3La2Ni octahedra,  a cornercorner with one O(9)Sr3La2Ni octahedra,  a cornercorner with one O(13)Sr4LaNi octahedra, corners with two equivalent O(1)Sr2La2CuNi octahedra, corners with two equivalent O(4)Sr2La2Ni2 octahedra, corners with three equivalent O(18)Sr2La2CuNi octahedra,  an edgeedge with one O(11)Sr2La3Ni octahedra,  an edgeedge with one O(15)Sr2La3Ni octahedra,  an edgeedge with one O(3)Sr2La3Ni octahedra,  an edgeedge with one O(5)Sr3La2Cu octahedra,  an edgeedge with one O(17)Sr3La2Ni octahedra,  an edgeedge with one O(9)Sr3La2Ni octahedra,  an edgeedge with one O(13)Sr4LaNi octahedra,  an edgeedge with one O(19)SrLa4Cu octahedra,  a faceface with one O(16)Sr2La2CuNi octahedra,  a faceface with one O(12)Sr2La2Ni2 octahedra,  a faceface with one O(14)Sr2La2Ni2 octahedra, and  a faceface with one O(2)Sr2La2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 1-57°. is represented by the CIF card [CIF]
data_Sr5La5Cu(NiO5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.326
_cell_length_b   8.653
_cell_length_c   6.853
_cell_angle_alpha   112.300
_cell_angle_beta   106.438
_cell_angle_gamma   26.525
_symmetry_Int_Tables_number   1
_cell_volume   469.098
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Sr  Sr0  1  0.129  0.358  0.718  1.0
  Sr  Sr1  1  0.329  0.356  0.718  1.0
  Sr  Sr2  1  0.527  0.363  0.718  1.0
  Sr  Sr3  1  0.728  0.359  0.718  1.0
  Sr  Sr4  1  0.872  0.641  0.286  1.0
  La  La5  1  0.073  0.636  0.274  1.0
  La  La6  1  0.270  0.647  0.277  1.0
  La  La7  1  0.473  0.638  0.279  1.0
  La  La8  1  0.672  0.644  0.278  1.0
  La  La9  1  0.927  0.364  0.728  1.0
  Cu  Cu10  1  0.000  0.997  0.993  1.0
  Ni  Ni11  1  0.201  0.996  0.994  1.0
  Ni  Ni12  1  0.401  0.997  0.996  1.0
  Ni  Ni13  1  0.599  0.999  0.993  1.0
  Ni  Ni14  1  0.800  0.999  0.000  1.0
  O  O15  1  0.099  0.001  1.000  1.0
  O  O16  1  0.999  0.504  0.005  1.0
  O  O17  1  0.178  0.140  0.327  1.0
  O  O18  1  0.303  0.002  0.010  1.0
  O  O19  1  0.033  0.835  0.650  1.0
  O  O20  1  0.198  0.508  0.016  1.0
  O  O21  1  0.373  0.147  0.325  1.0
  O  O22  1  0.496  0.006  0.010  1.0
  O  O23  1  0.225  0.846  0.654  1.0
  O  O24  1  0.399  0.504  0.003  1.0
  O  O25  1  0.557  0.180  0.325  1.0
  O  O26  1  0.701  0.004  0.003  1.0
  O  O27  1  0.435  0.829  0.660  1.0
  O  O28  1  0.603  0.496  0.011  1.0
  O  O29  1  0.765  0.168  0.321  1.0
  O  O30  1  0.896  0.009  0.017  1.0
  O  O31  1  0.642  0.818  0.655  1.0
  O  O32  1  0.798  0.505  0.001  1.0
  O  O33  1  0.966  0.169  0.352  1.0
  O  O34  1  0.834  0.834  0.685  1.0
[/CIF]
.