The crystal structure described by La8Ni4O17 crystallizes in the triclinic P1 space group. There are eight inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(14), one O(16), 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 10-coordinate geometry to one O(10), one O(12), one O(13), one O(14), one O(17), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(1), one O(16), one O(2), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(17), one O(2), one O(3), one O(4), one O(5), one O(8), and one O(9) atom. In the fifth La site, La(5) is bonded in a 9-coordinate geometry to one O(10), one O(11), one O(12), one O(14), one O(15), one O(16), one O(5), one O(6), and one O(9) atom. In the sixth La site, La(6) is bonded in a 10-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(15), one O(17), one O(5), one O(6), one O(7), and one O(8) atom. In the seventh La site, La(7) is bonded in a 10-coordinate geometry to one O(1), one O(11), one O(12), one O(13), one O(15), one O(17), one O(2), one O(7), one O(8), and one O(9) atom. In the eighth La site, La(8) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(13), one O(14), one O(15), one O(16), and one O(9) atom. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(10), one O(11), one O(3), one O(5), one O(7), and one O(8) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-11°. In the second Ni site, Ni(2) is bonded to one O(10), one O(15), one O(4), one O(6), one O(7), and one O(9) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. In the third Ni site, Ni(3) is bonded to one O(1), one O(12), one O(15), one O(16), one O(17), and one O(3) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 5-19°. In the fourth Ni site, Ni(4) is bonded to one O(11), one O(14), one O(16), one O(17), one O(2), and one O(4) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-19°. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one La(1), one La(3), one La(4), one La(7), one La(8), and one Ni(3) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(2), one La(3), one La(4), one La(7), and one Ni(4) atom. In the third O site, O(3) is bonded to one La(1), one La(2), one La(3), one La(4), one Ni(1), and one Ni(3) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(11)La4Ni2 octahedra,  a cornercorner with one O(15)La4Ni2 octahedra,  a cornercorner with one O(5)La5Ni octahedra, corners with two equivalent O(9)La5Ni octahedra, corners with three equivalent O(6)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra, edges with two equivalent O(4)La4Ni2 octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra, and  a faceface with one O(5)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 2-53°. In the fourth O site, O(4) is bonded to one La(1), one La(2), one La(3), one La(4), one Ni(2), and one Ni(4) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(11)La4Ni2 octahedra,  a cornercorner with one O(15)La4Ni2 octahedra,  a cornercorner with one O(6)La5Ni octahedra, corners with three equivalent O(5)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra, edges with two equivalent O(3)La4Ni2 octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-55°. In the fifth O site, O(5) is bonded to one La(1), one La(2), one La(4), one La(5), one La(6), and one Ni(1) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(10)La4Ni2 octahedra,  a cornercorner with one O(3)La4Ni2 octahedra, corners with two equivalent O(15)La4Ni2 octahedra, corners with three equivalent O(17)La4Ni2 octahedra, corners with three equivalent O(4)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(9)La5Ni octahedra, edges with two equivalent O(6)La5Ni octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra, and  a faceface with one O(7)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 44-55°. In the sixth O site, O(6) is bonded to one La(1), one La(2), one La(3), one La(5), one La(6), and one Ni(2) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(4)La4Ni2 octahedra,  a cornercorner with one O(7)La4Ni2 octahedra,  a cornercorner with one O(9)La5Ni octahedra, corners with two equivalent O(11)La4Ni2 octahedra, corners with two equivalent O(17)La4Ni2 octahedra, corners with three equivalent O(3)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(9)La5Ni octahedra, edges with two equivalent O(5)La5Ni octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra, and  a faceface with one O(7)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the seventh O site, O(7) is bonded to one La(1), one La(3), one La(6), one La(7), one Ni(1), and one Ni(2) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(6)La5Ni octahedra, corners with two equivalent O(10)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(17)La4Ni2 octahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra,  a faceface with one O(5)La5Ni octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-46°. In the eighth O site, O(8) is bonded in a distorted see-saw-like geometry to one La(3), one La(4), one La(6), one La(7), and one Ni(1) atom. In the ninth O site, O(9) is bonded to one La(3), one La(4), one La(5), one La(7), one La(8), and one Ni(2) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(10)La4Ni2 octahedra,  a cornercorner with one O(15)La4Ni2 octahedra,  a cornercorner with one O(6)La5Ni octahedra, corners with two equivalent O(17)La4Ni2 octahedra, corners with two equivalent O(3)La4Ni2 octahedra, corners with three equivalent O(11)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(5)La5Ni octahedra,  an edgeedge with one O(6)La5Ni octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra, and  a faceface with one O(7)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the tenth O site, O(10) is bonded to one La(2), one La(4), one La(5), one La(8), one Ni(1), and one Ni(2) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(5)La5Ni octahedra,  a cornercorner with one O(9)La5Ni octahedra, corners with two equivalent O(7)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(17)La4Ni2 octahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra,  a faceface with one O(5)La5Ni octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-52°. In the eleventh O site, O(11) is bonded to one La(5), one La(6), one La(7), one La(8), one Ni(1), and one Ni(4) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(3)La4Ni2 octahedra,  a cornercorner with one O(4)La4Ni2 octahedra, corners with two equivalent O(6)La5Ni octahedra, corners with three equivalent O(9)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra, edges with two equivalent O(15)La4Ni2 octahedra,  an edgeedge with one O(13)La4 tetrahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra, and  a faceface with one O(5)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 2-53°. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one La(5), one La(6), one La(7), and one Ni(3) atom. In the thirteenth O site, O(13) is bonded to one La(2), one La(6), one La(7), and one La(8) atom to form OLa4 tetrahedra that share  a cornercorner with one O(11)La4Ni2 octahedra,  a cornercorner with one O(17)La4Ni2 octahedra,  a cornercorner with one O(3)La4Ni2 octahedra,  a cornercorner with one O(4)La4Ni2 octahedra, corners with two equivalent O(10)La4Ni2 octahedra, corners with two equivalent O(7)La4Ni2 octahedra, corners with two equivalent O(5)La5Ni octahedra, corners with two equivalent O(6)La5Ni octahedra, corners with two equivalent O(9)La5Ni octahedra, corners with three equivalent O(15)La4Ni2 octahedra,  an edgeedge with one O(11)La4Ni2 octahedra, and  an edgeedge with one O(17)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 8-69°. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one La(1), one La(2), one La(5), one La(6), one La(8), and one Ni(4) atom. In the fifteenth O site, O(15) is bonded to one La(5), one La(6), one La(7), one La(8), one Ni(2), and one Ni(3) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(3)La4Ni2 octahedra,  a cornercorner with one O(4)La4Ni2 octahedra,  a cornercorner with one O(9)La5Ni octahedra, corners with two equivalent O(5)La5Ni octahedra, corners with three equivalent O(13)La4 tetrahedra, edges with two equivalent O(11)La4Ni2 octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-52°. In the sixteenth O site, O(16) is bonded in a 6-coordinate geometry to one La(1), one La(3), one La(5), one La(8), one Ni(3), and one Ni(4) atom. In the seventeenth O site, O(17) is bonded to one La(2), one La(4), one La(6), one La(7), one Ni(3), and one Ni(4) atom to form distorted OLa4Ni2 octahedra that share corners with two equivalent O(6)La5Ni octahedra, corners with two equivalent O(9)La5Ni octahedra, corners with three equivalent O(5)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra,  an edgeedge with one O(10)La4Ni2 octahedra,  an edgeedge with one O(7)La4Ni2 octahedra,  an edgeedge with one O(13)La4 tetrahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra, and  a faceface with one O(4)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 44-54°. is represented by the Crystallographic Information File (CIF) [CIF]
data_La8Ni4O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.903
_cell_length_b   7.794
_cell_length_c   8.741
_cell_angle_alpha   63.091
_cell_angle_beta   67.597
_cell_angle_gamma   73.433
_symmetry_Int_Tables_number   1
_cell_volume   384.042
_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
  La  La0  1  0.717  0.910  0.828  1.0
  La  La1  1  0.707  0.410  0.825  1.0
  La  La2  1  0.280  0.838  0.673  1.0
  La  La3  1  0.275  0.336  0.682  1.0
  La  La4  1  0.724  0.661  0.313  1.0
  La  La5  1  0.713  0.163  0.322  1.0
  La  La6  1  0.286  0.091  0.177  1.0
  La  La7  1  0.289  0.583  0.186  1.0
  Ni  Ni8  1  0.995  0.248  0.505  1.0
  Ni  Ni9  1  0.993  0.751  0.501  1.0
  Ni  Ni10  1  0.001  0.997  0.002  1.0
  Ni  Ni11  1  0.005  0.505  0.994  1.0
  O  O12  1  0.341  0.981  0.918  1.0
  O  O13  1  0.343  0.476  0.845  1.0
  O  O14  1  0.969  0.130  0.761  1.0
  O  O15  1  0.971  0.628  0.754  1.0
  O  O16  1  0.658  0.296  0.575  1.0
  O  O17  1  0.654  0.792  0.587  1.0
  O  O18  1  0.010  0.998  0.499  1.0
  O  O19  1  0.344  0.172  0.481  1.0
  O  O20  1  0.341  0.710  0.413  1.0
  O  O21  1  0.011  0.500  0.491  1.0
  O  O22  1  0.010  0.370  0.247  1.0
  O  O23  1  0.663  0.980  0.087  1.0
  O  O24  1  0.492  0.314  0.127  1.0
  O  O25  1  0.665  0.601  0.088  1.0
  O  O26  1  0.983  0.880  0.255  1.0
  O  O27  1  0.054  0.742  0.990  1.0
  O  O28  1  0.975  0.254  0.007  1.0
[/CIF]
.
The crystal structure described by La8Ni4O17 crystallizes in the triclinic P1 space group. There are eight inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(14), one O(16), 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 10-coordinate geometry to one O(10), one O(12), one O(13), one O(14), one O(17), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(1), one O(16), one O(2), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(17), one O(2), one O(3), one O(4), one O(5), one O(8), and one O(9) atom. In the fifth La site, La(5) is bonded in a 9-coordinate geometry to one O(10), one O(11), one O(12), one O(14), one O(15), one O(16), one O(5), one O(6), and one O(9) atom. In the sixth La site, La(6) is bonded in a 10-coordinate geometry to one O(11), one O(12), one O(13), one O(14), one O(15), one O(17), one O(5), one O(6), one O(7), and one O(8) atom. In the seventh La site, La(7) is bonded in a 10-coordinate geometry to one O(1), one O(11), one O(12), one O(13), one O(15), one O(17), one O(2), one O(7), one O(8), and one O(9) atom. In the eighth La site, La(8) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(13), one O(14), one O(15), one O(16), and one O(9) atom. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(10), one O(11), one O(3), one O(5), one O(7), and one O(8) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-11°. In the second Ni site, Ni(2) is bonded to one O(10), one O(15), one O(4), one O(6), one O(7), and one O(9) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. In the third Ni site, Ni(3) is bonded to one O(1), one O(12), one O(15), one O(16), one O(17), and one O(3) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 5-19°. In the fourth Ni site, Ni(4) is bonded to one O(11), one O(14), one O(16), one O(17), one O(2), and one O(4) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 4-19°. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one La(1), one La(3), one La(4), one La(7), one La(8), and one Ni(3) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one La(2), one La(3), one La(4), one La(7), and one Ni(4) atom. In the third O site, O(3) is bonded to one La(1), one La(2), one La(3), one La(4), one Ni(1), and one Ni(3) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(11)La4Ni2 octahedra,  a cornercorner with one O(15)La4Ni2 octahedra,  a cornercorner with one O(5)La5Ni octahedra, corners with two equivalent O(9)La5Ni octahedra, corners with three equivalent O(6)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra, edges with two equivalent O(4)La4Ni2 octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra, and  a faceface with one O(5)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 2-53°. In the fourth O site, O(4) is bonded to one La(1), one La(2), one La(3), one La(4), one Ni(2), and one Ni(4) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(11)La4Ni2 octahedra,  a cornercorner with one O(15)La4Ni2 octahedra,  a cornercorner with one O(6)La5Ni octahedra, corners with three equivalent O(5)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra, edges with two equivalent O(3)La4Ni2 octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-55°. In the fifth O site, O(5) is bonded to one La(1), one La(2), one La(4), one La(5), one La(6), and one Ni(1) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(10)La4Ni2 octahedra,  a cornercorner with one O(3)La4Ni2 octahedra, corners with two equivalent O(15)La4Ni2 octahedra, corners with three equivalent O(17)La4Ni2 octahedra, corners with three equivalent O(4)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(9)La5Ni octahedra, edges with two equivalent O(6)La5Ni octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra, and  a faceface with one O(7)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 44-55°. In the sixth O site, O(6) is bonded to one La(1), one La(2), one La(3), one La(5), one La(6), and one Ni(2) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(4)La4Ni2 octahedra,  a cornercorner with one O(7)La4Ni2 octahedra,  a cornercorner with one O(9)La5Ni octahedra, corners with two equivalent O(11)La4Ni2 octahedra, corners with two equivalent O(17)La4Ni2 octahedra, corners with three equivalent O(3)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(9)La5Ni octahedra, edges with two equivalent O(5)La5Ni octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra, and  a faceface with one O(7)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the seventh O site, O(7) is bonded to one La(1), one La(3), one La(6), one La(7), one Ni(1), and one Ni(2) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(6)La5Ni octahedra, corners with two equivalent O(10)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(17)La4Ni2 octahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra,  a faceface with one O(5)La5Ni octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-46°. In the eighth O site, O(8) is bonded in a distorted see-saw-like geometry to one La(3), one La(4), one La(6), one La(7), and one Ni(1) atom. In the ninth O site, O(9) is bonded to one La(3), one La(4), one La(5), one La(7), one La(8), and one Ni(2) atom to form distorted OLa5Ni octahedra that share  a cornercorner with one O(10)La4Ni2 octahedra,  a cornercorner with one O(15)La4Ni2 octahedra,  a cornercorner with one O(6)La5Ni octahedra, corners with two equivalent O(17)La4Ni2 octahedra, corners with two equivalent O(3)La4Ni2 octahedra, corners with three equivalent O(11)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(5)La5Ni octahedra,  an edgeedge with one O(6)La5Ni octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra, and  a faceface with one O(7)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the tenth O site, O(10) is bonded to one La(2), one La(4), one La(5), one La(8), one Ni(1), and one Ni(2) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(5)La5Ni octahedra,  a cornercorner with one O(9)La5Ni octahedra, corners with two equivalent O(7)La4Ni2 octahedra, corners with two equivalent O(13)La4 tetrahedra,  an edgeedge with one O(17)La4Ni2 octahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra,  a faceface with one O(4)La4Ni2 octahedra,  a faceface with one O(5)La5Ni octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-52°. In the eleventh O site, O(11) is bonded to one La(5), one La(6), one La(7), one La(8), one Ni(1), and one Ni(4) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(3)La4Ni2 octahedra,  a cornercorner with one O(4)La4Ni2 octahedra, corners with two equivalent O(6)La5Ni octahedra, corners with three equivalent O(9)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra, edges with two equivalent O(15)La4Ni2 octahedra,  an edgeedge with one O(13)La4 tetrahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra, and  a faceface with one O(5)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 2-53°. In the twelfth O site, O(12) is bonded in a distorted rectangular see-saw-like geometry to one La(1), one La(2), one La(5), one La(6), one La(7), and one Ni(3) atom. In the thirteenth O site, O(13) is bonded to one La(2), one La(6), one La(7), and one La(8) atom to form OLa4 tetrahedra that share  a cornercorner with one O(11)La4Ni2 octahedra,  a cornercorner with one O(17)La4Ni2 octahedra,  a cornercorner with one O(3)La4Ni2 octahedra,  a cornercorner with one O(4)La4Ni2 octahedra, corners with two equivalent O(10)La4Ni2 octahedra, corners with two equivalent O(7)La4Ni2 octahedra, corners with two equivalent O(5)La5Ni octahedra, corners with two equivalent O(6)La5Ni octahedra, corners with two equivalent O(9)La5Ni octahedra, corners with three equivalent O(15)La4Ni2 octahedra,  an edgeedge with one O(11)La4Ni2 octahedra, and  an edgeedge with one O(17)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 8-69°. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one La(1), one La(2), one La(5), one La(6), one La(8), and one Ni(4) atom. In the fifteenth O site, O(15) is bonded to one La(5), one La(6), one La(7), one La(8), one Ni(2), and one Ni(3) atom to form distorted OLa4Ni2 octahedra that share  a cornercorner with one O(3)La4Ni2 octahedra,  a cornercorner with one O(4)La4Ni2 octahedra,  a cornercorner with one O(9)La5Ni octahedra, corners with two equivalent O(5)La5Ni octahedra, corners with three equivalent O(13)La4 tetrahedra, edges with two equivalent O(11)La4Ni2 octahedra,  a faceface with one O(10)La4Ni2 octahedra,  a faceface with one O(17)La4Ni2 octahedra,  a faceface with one O(7)La4Ni2 octahedra,  a faceface with one O(6)La5Ni octahedra, and  a faceface with one O(9)La5Ni octahedra. The corner-sharing octahedral tilt angles range from 6-52°. In the sixteenth O site, O(16) is bonded in a 6-coordinate geometry to one La(1), one La(3), one La(5), one La(8), one Ni(3), and one Ni(4) atom. In the seventeenth O site, O(17) is bonded to one La(2), one La(4), one La(6), one La(7), one Ni(3), and one Ni(4) atom to form distorted OLa4Ni2 octahedra that share corners with two equivalent O(6)La5Ni octahedra, corners with two equivalent O(9)La5Ni octahedra, corners with three equivalent O(5)La5Ni octahedra,  a cornercorner with one O(13)La4 tetrahedra,  an edgeedge with one O(10)La4Ni2 octahedra,  an edgeedge with one O(7)La4Ni2 octahedra,  an edgeedge with one O(13)La4 tetrahedra,  a faceface with one O(11)La4Ni2 octahedra,  a faceface with one O(15)La4Ni2 octahedra,  a faceface with one O(3)La4Ni2 octahedra, and  a faceface with one O(4)La4Ni2 octahedra. The corner-sharing octahedral tilt angles range from 44-54°. is represented by the Crystallographic Information File (CIF) [CIF]
data_La8Ni4O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.903
_cell_length_b   7.794
_cell_length_c   8.741
_cell_angle_alpha   63.091
_cell_angle_beta   67.597
_cell_angle_gamma   73.433
_symmetry_Int_Tables_number   1
_cell_volume   384.042
_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
  La  La0  1  0.717  0.910  0.828  1.0
  La  La1  1  0.707  0.410  0.825  1.0
  La  La2  1  0.280  0.838  0.673  1.0
  La  La3  1  0.275  0.336  0.682  1.0
  La  La4  1  0.724  0.661  0.313  1.0
  La  La5  1  0.713  0.163  0.322  1.0
  La  La6  1  0.286  0.091  0.177  1.0
  La  La7  1  0.289  0.583  0.186  1.0
  Ni  Ni8  1  0.995  0.248  0.505  1.0
  Ni  Ni9  1  0.993  0.751  0.501  1.0
  Ni  Ni10  1  0.001  0.997  0.002  1.0
  Ni  Ni11  1  0.005  0.505  0.994  1.0
  O  O12  1  0.341  0.981  0.918  1.0
  O  O13  1  0.343  0.476  0.845  1.0
  O  O14  1  0.969  0.130  0.761  1.0
  O  O15  1  0.971  0.628  0.754  1.0
  O  O16  1  0.658  0.296  0.575  1.0
  O  O17  1  0.654  0.792  0.587  1.0
  O  O18  1  0.010  0.998  0.499  1.0
  O  O19  1  0.344  0.172  0.481  1.0
  O  O20  1  0.341  0.710  0.413  1.0
  O  O21  1  0.011  0.500  0.491  1.0
  O  O22  1  0.010  0.370  0.247  1.0
  O  O23  1  0.663  0.980  0.087  1.0
  O  O24  1  0.492  0.314  0.127  1.0
  O  O25  1  0.665  0.601  0.088  1.0
  O  O26  1  0.983  0.880  0.255  1.0
  O  O27  1  0.054  0.742  0.990  1.0
  O  O28  1  0.975  0.254  0.007  1.0
[/CIF]
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