The material described by Ti9Fe11O30 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. There are nine inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(14), one O(2), one O(3), one O(5), one O(6), and one O(8) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Ti(5)O6 octahedra,  an edgeedge with one Ti(9)O6 octahedra, and  a faceface with one Fe(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the second Ti site, Ti(2) is bonded to one O(13), one O(28), one O(29), one O(30), one O(7), and one O(9) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Ti(7)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the third Ti site, Ti(3) is bonded to one O(10), one O(12), one O(27), one O(30), one O(4), and one O(7) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(8)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and  a faceface with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-62°. In the fourth Ti site, Ti(4) is bonded to one O(11), one O(13), one O(20), one O(5), one O(6), and one O(9) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(7)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(6)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the fifth Ti site, Ti(5) is bonded to one O(14), one O(15), one O(16), one O(19), one O(21), and one O(8) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(8)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and  a faceface with one Fe(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-60°. In the sixth Ti site, Ti(6) is bonded to one O(11), one O(17), one O(20), one O(22), one O(24), and one O(26) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Ti(7)O6 octahedra,  an edgeedge with one Ti(9)O6 octahedra, and  a faceface with one Fe(10)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-63°. In the seventh Ti site, Ti(7) is bonded to one O(18), one O(23), one O(24), one O(26), one O(28), and one O(29) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(6)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and  a faceface with one Fe(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the eighth Ti site, Ti(8) is bonded to one O(1), one O(19), one O(21), one O(25), one O(27), and one O(4) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Ti(5)O6 octahedra,  an edgeedge with one Ti(9)O6 octahedra, and  a faceface with one Fe(11)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-61°. In the ninth Ti site, Ti(9) is bonded to one O(1), one O(17), one O(2), one O(22), one O(25), and one O(3) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(6)O6 octahedra,  an edgeedge with one Ti(8)O6 octahedra, and  a faceface with one Fe(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. There are eleven inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(10), one O(11), one O(13), one O(5), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra, and  a faceface with one Ti(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-58°. In the second Fe site, Fe(2) is bonded to one O(12), one O(2), one O(26), one O(30), one O(4), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra, and  a faceface with one Ti(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-61°. In the third Fe site, Fe(3) is bonded to one O(15), one O(28), one O(3), one O(4), one O(7), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-65°. In the fourth Fe site, Fe(4) is bonded to one O(10), one O(11), one O(14), one O(16), one O(18), and one O(25) atom to form FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra, corners with two equivalent Ti(5)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-63°. In the fifth Fe site, Fe(5) is bonded to one O(10), one O(12), one O(15), one O(16), one O(18), and one O(23) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(8)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Ti(5)O6 octahedra,  an edgeedge with one Ti(7)O6 octahedra, and  a faceface with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-65°. In the sixth Fe site, Fe(6) is bonded to one O(17), one O(19), one O(23), one O(24), one O(29), and one O(6) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(6)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra, and  a faceface with one Ti(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-61°. In the seventh Fe site, Fe(7) is bonded to one O(12), one O(13), one O(2), one O(24), one O(6), and one O(8) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra, and  a faceface with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-64°. In the eighth Fe site, Fe(8) is bonded to one O(14), one O(15), one O(18), one O(20), one O(21), and one O(7) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Ti(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the ninth Fe site, Fe(9) is bonded to one O(16), one O(22), one O(25), one O(27), one O(28), and one O(3) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(8)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Ti(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the tenth Fe site, Fe(10) is bonded to one O(17), one O(20), one O(21), one O(23), one O(26), and one O(30) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(7)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Ti(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-64°. In the eleventh Fe site, Fe(11) is bonded to one O(1), one O(19), one O(22), one O(27), one O(29), and one O(5) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra, corners with two equivalent Ti(9)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Ti(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. There are thirty inequivalent O sites. In the first O site, O(1) is bonded to one Ti(8), one Ti(9), one Fe(1), and one Fe(11) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  an edgeedge with one O(19)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(25)Ti2Fe2 trigonal pyramid. In the second O site, O(2) is bonded to one Ti(1), one Ti(9), one Fe(2), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(6)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(8)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(12)TiFe3 trigonal pyramid. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(9), one Fe(3), and one Fe(9) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Ti(3), one Ti(8), one Fe(2), and one Fe(3) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(4), one Fe(1), and one Fe(11) atom. In the sixth O site, O(6) is bonded to one Ti(1), one Ti(4), one Fe(6), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  an edgeedge with one O(2)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(24)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(8)Ti2Fe2 trigonal pyramid. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(3), one Fe(3), and one Fe(8) atom. In the eighth O site, O(8) is bonded to one Ti(1), one Ti(5), one Fe(1), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  an edgeedge with one O(14)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(2)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(6)Ti2Fe2 trigonal pyramid. In the ninth O site, O(9) is bonded to one Ti(2), one Ti(4), one Fe(2), and one Fe(3) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid, and  a cornercorner with one O(12)TiFe3 trigonal pyramid. In the tenth O site, O(10) is bonded to one Ti(3), one Fe(1), one Fe(4), and one Fe(5) atom to form distorted OTiFe3 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(12)TiFe3 trigonal pyramid, and  an edgeedge with one O(18)TiFe3 trigonal pyramid. In the eleventh O site, O(11) is bonded in a distorted see-saw-like geometry to one Ti(4), one Ti(6), one Fe(1), and one Fe(4) atom. In the twelfth O site, O(12) is bonded to one Ti(3), one Fe(2), one Fe(5), and one Fe(7) atom to form distorted OTiFe3 trigonal pyramids that share  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid,  an edgeedge with one O(2)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(10)TiFe3 trigonal pyramid. In the thirteenth O site, O(13) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(4), one Fe(1), and one Fe(7) atom. In the fourteenth O site, O(14) is bonded to one Ti(1), one Ti(5), one Fe(4), and one Fe(8) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  an edgeedge with one O(8)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(18)TiFe3 trigonal pyramid. In the fifteenth O site, O(15) is bonded in a distorted see-saw-like geometry to one Ti(5), one Fe(3), one Fe(5), and one Fe(8) atom. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Ti(5), one Fe(4), one Fe(5), and one Fe(9) atom. In the seventeenth O site, O(17) is bonded in a distorted see-saw-like geometry to one Ti(6), one Ti(9), one Fe(10), and one Fe(6) atom. In the eighteenth O site, O(18) is bonded to one Ti(7), one Fe(4), one Fe(5), and one Fe(8) atom to form distorted OTiFe3 trigonal pyramids that share  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  an edgeedge with one O(14)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(10)TiFe3 trigonal pyramid. In the nineteenth O site, O(19) is bonded to one Ti(5), one Ti(8), one Fe(11), and one Fe(6) atom to form a mixture of distorted corner and edge-sharing OTi2Fe2 trigonal pyramids. In the twentieth O site, O(20) is bonded in a distorted see-saw-like geometry to one Ti(4), one Ti(6), one Fe(10), and one Fe(8) atom. In the twenty-first O site, O(21) is bonded in a distorted see-saw-like geometry to one Ti(5), one Ti(8), one Fe(10), and one Fe(8) atom. In the twenty-second O site, O(22) is bonded in a distorted see-saw-like geometry to one Ti(6), one Ti(9), one Fe(11), and one Fe(9) atom. In the twenty-third O site, O(23) is bonded in a distorted see-saw-like geometry to one Ti(7), one Fe(10), one Fe(5), and one Fe(6) atom. In the twenty-fourth O site, O(24) is bonded to one Ti(6), one Ti(7), one Fe(6), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid,  an edgeedge with one O(26)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(29)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(6)Ti2Fe2 trigonal pyramid. In the twenty-fifth O site, O(25) is bonded to one Ti(8), one Ti(9), one Fe(4), and one Fe(9) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid, and  an edgeedge with one O(1)Ti2Fe2 trigonal pyramid. In the twenty-sixth O site, O(26) is bonded to one Ti(6), one Ti(7), one Fe(10), and one Fe(2) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid, and  an edgeedge with one O(24)Ti2Fe2 trigonal pyramid. In the twenty-seventh O site, O(27) is bonded in a distorted see-saw-like geometry to one Ti(3), one Ti(8), one Fe(11), and one Fe(9) atom. In the twenty-eighth O site, O(28) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(7), one Fe(3), and one Fe(9) atom. In the twenty-ninth O site, O(29) is bonded to one Ti(2), one Ti(7), one Fe(11), and one Fe(6) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid,  an edgeedge with one O(19)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(24)Ti2Fe2 trigonal pyramid. In the thirtieth O site, O(30) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(3), one Fe(10), and one Fe(2) atom. is represented by the CIF card [CIF]
data_Ti9Fe11O30
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.915
_cell_length_b   7.606
_cell_length_c   9.191
_cell_angle_alpha   72.182
_cell_angle_beta   98.988
_cell_angle_gamma   113.081
_symmetry_Int_Tables_number   1
_cell_volume   545.327
_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
  Ti  Ti0  1  0.740  0.342  0.774  1.0
  Ti  Ti1  1  0.946  0.739  0.172  1.0
  Ti  Ti2  1  0.853  0.861  0.423  1.0
  Ti  Ti3  1  0.659  0.460  0.028  1.0
  Ti  Ti4  1  0.459  0.059  0.624  1.0
  Ti  Ti5  1  0.341  0.538  0.977  1.0
  Ti  Ti6  1  0.262  0.665  0.228  1.0
  Ti  Ti7  1  0.142  0.135  0.571  1.0
  Ti  Ti8  1  0.057  0.263  0.827  1.0
  Fe  Fe9  1  0.740  0.836  0.778  1.0
  Fe  Fe10  1  0.943  0.236  0.177  1.0
  Fe  Fe11  1  0.857  0.358  0.425  1.0
  Fe  Fe12  1  0.453  0.559  0.624  1.0
  Fe  Fe13  1  0.541  0.940  0.374  1.0
  Fe  Fe14  1  0.343  0.037  0.975  1.0
  Fe  Fe15  1  0.659  0.962  0.029  1.0
  Fe  Fe16  1  0.540  0.436  0.377  1.0
  Fe  Fe17  1  0.140  0.638  0.573  1.0
  Fe  Fe18  1  0.258  0.159  0.223  1.0
  Fe  Fe19  1  0.063  0.762  0.823  1.0
  O  O20  1  0.976  0.019  0.764  1.0
  O  O21  1  0.887  0.215  0.951  1.0
  O  O22  1  0.914  0.390  0.654  1.0
  O  O23  1  0.973  0.168  0.426  1.0
  O  O24  1  0.809  0.580  0.834  1.0
  O  O25  1  0.593  0.230  0.961  1.0
  O  O26  1  0.792  0.628  0.362  1.0
  O  O27  1  0.634  0.029  0.770  1.0
  O  O28  1  0.830  0.437  0.171  1.0
  O  O29  1  0.693  0.812  0.563  1.0
  O  O30  1  0.518  0.597  0.851  1.0
  O  O31  1  0.721  0.987  0.255  1.0
  O  O32  1  0.773  0.765  0.021  1.0
  O  O33  1  0.569  0.359  0.635  1.0
  O  O34  1  0.606  0.182  0.442  1.0
  O  O35  1  0.384  0.823  0.566  1.0
  O  O36  1  0.226  0.237  0.967  1.0
  O  O37  1  0.431  0.631  0.371  1.0
  O  O38  1  0.287  0.016  0.749  1.0
  O  O39  1  0.486  0.411  0.145  1.0
  O  O40  1  0.311  0.185  0.452  1.0
  O  O41  1  0.169  0.563  0.830  1.0
  O  O42  1  0.367  0.960  0.220  1.0
  O  O43  1  0.417  0.773  0.036  1.0
  O  O44  1  0.209  0.368  0.639  1.0
  O  O45  1  0.192  0.432  0.159  1.0
  O  O46  1  0.028  0.842  0.569  1.0
  O  O47  1  0.088  0.615  0.345  1.0
  O  O48  1  0.111  0.786  0.050  1.0
  O  O49  1  0.014  0.976  0.235  1.0
[/CIF]
.
The material described by Ti9Fe11O30 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. There are nine inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(14), one O(2), one O(3), one O(5), one O(6), and one O(8) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Ti(5)O6 octahedra,  an edgeedge with one Ti(9)O6 octahedra, and  a faceface with one Fe(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the second Ti site, Ti(2) is bonded to one O(13), one O(28), one O(29), one O(30), one O(7), and one O(9) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(2)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Ti(7)O6 octahedra, and  a faceface with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the third Ti site, Ti(3) is bonded to one O(10), one O(12), one O(27), one O(30), one O(4), and one O(7) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(8)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and  a faceface with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-62°. In the fourth Ti site, Ti(4) is bonded to one O(11), one O(13), one O(20), one O(5), one O(6), and one O(9) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(7)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(6)O6 octahedra, and  a faceface with one Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the fifth Ti site, Ti(5) is bonded to one O(14), one O(15), one O(16), one O(19), one O(21), and one O(8) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(4)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(8)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and  a faceface with one Fe(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-60°. In the sixth Ti site, Ti(6) is bonded to one O(11), one O(17), one O(20), one O(22), one O(24), and one O(26) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(6)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Ti(7)O6 octahedra,  an edgeedge with one Ti(9)O6 octahedra, and  a faceface with one Fe(10)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-63°. In the seventh Ti site, Ti(7) is bonded to one O(18), one O(23), one O(24), one O(26), one O(28), and one O(29) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(11)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(10)O6 octahedra,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(6)O6 octahedra,  an edgeedge with one Fe(5)O6 octahedra, and  a faceface with one Fe(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the eighth Ti site, Ti(8) is bonded to one O(1), one O(19), one O(21), one O(25), one O(27), and one O(4) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(8)O6 octahedra, corners with two equivalent Fe(9)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Ti(5)O6 octahedra,  an edgeedge with one Ti(9)O6 octahedra, and  a faceface with one Fe(11)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-61°. In the ninth Ti site, Ti(9) is bonded to one O(1), one O(17), one O(2), one O(22), one O(25), and one O(3) atom to form distorted TiO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(4)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra, corners with two equivalent Fe(11)O6 octahedra,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(6)O6 octahedra,  an edgeedge with one Ti(8)O6 octahedra, and  a faceface with one Fe(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. There are eleven inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(10), one O(11), one O(13), one O(5), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra, and  a faceface with one Ti(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-58°. In the second Fe site, Fe(2) is bonded to one O(12), one O(2), one O(26), one O(30), one O(4), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra, and  a faceface with one Ti(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-61°. In the third Fe site, Fe(3) is bonded to one O(15), one O(28), one O(3), one O(4), one O(7), and one O(9) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-65°. In the fourth Fe site, Fe(4) is bonded to one O(10), one O(11), one O(14), one O(16), one O(18), and one O(25) atom to form FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra, corners with two equivalent Ti(5)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Fe(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-63°. In the fifth Fe site, Fe(5) is bonded to one O(10), one O(12), one O(15), one O(16), one O(18), and one O(23) atom to form distorted FeO6 octahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(10)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Fe(3)O6 octahedra,  a cornercorner with one Fe(6)O6 octahedra,  a cornercorner with one Fe(7)O6 octahedra,  a cornercorner with one Fe(9)O6 octahedra, corners with two equivalent Fe(8)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Ti(5)O6 octahedra,  an edgeedge with one Ti(7)O6 octahedra, and  a faceface with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-65°. In the sixth Fe site, Fe(6) is bonded to one O(17), one O(19), one O(23), one O(24), one O(29), and one O(6) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(6)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(7)O6 octahedra, and  a faceface with one Ti(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-61°. In the seventh Fe site, Fe(7) is bonded to one O(12), one O(13), one O(2), one O(24), one O(6), and one O(8) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(4)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra, and  a faceface with one Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-64°. In the eighth Fe site, Fe(8) is bonded to one O(14), one O(15), one O(18), one O(20), one O(21), and one O(7) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra, corners with two equivalent Fe(5)O6 octahedra,  an edgeedge with one Fe(10)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Ti(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the ninth Fe site, Fe(9) is bonded to one O(16), one O(22), one O(25), one O(27), one O(28), and one O(3) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(8)O6 octahedra,  an edgeedge with one Fe(11)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra, and  a faceface with one Ti(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-62°. In the tenth Fe site, Fe(10) is bonded to one O(17), one O(20), one O(21), one O(23), one O(26), and one O(30) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(8)O6 octahedra,  a cornercorner with one Ti(9)O6 octahedra,  a cornercorner with one Fe(5)O6 octahedra, corners with two equivalent Ti(7)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(8)O6 octahedra, and  a faceface with one Ti(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-64°. In the eleventh Fe site, Fe(11) is bonded to one O(1), one O(19), one O(22), one O(27), one O(29), and one O(5) atom to form distorted FeO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Ti(5)O6 octahedra,  a cornercorner with one Ti(6)O6 octahedra,  a cornercorner with one Ti(7)O6 octahedra, corners with two equivalent Ti(9)O6 octahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(6)O6 octahedra,  an edgeedge with one Fe(9)O6 octahedra, and  a faceface with one Ti(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. There are thirty inequivalent O sites. In the first O site, O(1) is bonded to one Ti(8), one Ti(9), one Fe(1), and one Fe(11) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  an edgeedge with one O(19)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(25)Ti2Fe2 trigonal pyramid. In the second O site, O(2) is bonded to one Ti(1), one Ti(9), one Fe(2), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(6)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(8)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(12)TiFe3 trigonal pyramid. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(9), one Fe(3), and one Fe(9) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Ti(3), one Ti(8), one Fe(2), and one Fe(3) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Ti(1), one Ti(4), one Fe(1), and one Fe(11) atom. In the sixth O site, O(6) is bonded to one Ti(1), one Ti(4), one Fe(6), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  an edgeedge with one O(2)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(24)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(8)Ti2Fe2 trigonal pyramid. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(3), one Fe(3), and one Fe(8) atom. In the eighth O site, O(8) is bonded to one Ti(1), one Ti(5), one Fe(1), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  an edgeedge with one O(14)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(2)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(6)Ti2Fe2 trigonal pyramid. In the ninth O site, O(9) is bonded to one Ti(2), one Ti(4), one Fe(2), and one Fe(3) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid, and  a cornercorner with one O(12)TiFe3 trigonal pyramid. In the tenth O site, O(10) is bonded to one Ti(3), one Fe(1), one Fe(4), and one Fe(5) atom to form distorted OTiFe3 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(12)TiFe3 trigonal pyramid, and  an edgeedge with one O(18)TiFe3 trigonal pyramid. In the eleventh O site, O(11) is bonded in a distorted see-saw-like geometry to one Ti(4), one Ti(6), one Fe(1), and one Fe(4) atom. In the twelfth O site, O(12) is bonded to one Ti(3), one Fe(2), one Fe(5), and one Fe(7) atom to form distorted OTiFe3 trigonal pyramids that share  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid,  an edgeedge with one O(2)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(10)TiFe3 trigonal pyramid. In the thirteenth O site, O(13) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(4), one Fe(1), and one Fe(7) atom. In the fourteenth O site, O(14) is bonded to one Ti(1), one Ti(5), one Fe(4), and one Fe(8) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  an edgeedge with one O(8)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(18)TiFe3 trigonal pyramid. In the fifteenth O site, O(15) is bonded in a distorted see-saw-like geometry to one Ti(5), one Fe(3), one Fe(5), and one Fe(8) atom. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Ti(5), one Fe(4), one Fe(5), and one Fe(9) atom. In the seventeenth O site, O(17) is bonded in a distorted see-saw-like geometry to one Ti(6), one Ti(9), one Fe(10), and one Fe(6) atom. In the eighteenth O site, O(18) is bonded to one Ti(7), one Fe(4), one Fe(5), and one Fe(8) atom to form distorted OTiFe3 trigonal pyramids that share  a cornercorner with one O(24)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(25)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  an edgeedge with one O(14)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(10)TiFe3 trigonal pyramid. In the nineteenth O site, O(19) is bonded to one Ti(5), one Ti(8), one Fe(11), and one Fe(6) atom to form a mixture of distorted corner and edge-sharing OTi2Fe2 trigonal pyramids. In the twentieth O site, O(20) is bonded in a distorted see-saw-like geometry to one Ti(4), one Ti(6), one Fe(10), and one Fe(8) atom. In the twenty-first O site, O(21) is bonded in a distorted see-saw-like geometry to one Ti(5), one Ti(8), one Fe(10), and one Fe(8) atom. In the twenty-second O site, O(22) is bonded in a distorted see-saw-like geometry to one Ti(6), one Ti(9), one Fe(11), and one Fe(9) atom. In the twenty-third O site, O(23) is bonded in a distorted see-saw-like geometry to one Ti(7), one Fe(10), one Fe(5), and one Fe(6) atom. In the twenty-fourth O site, O(24) is bonded to one Ti(6), one Ti(7), one Fe(6), and one Fe(7) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(8)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid,  an edgeedge with one O(26)Ti2Fe2 trigonal pyramid,  an edgeedge with one O(29)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(6)Ti2Fe2 trigonal pyramid. In the twenty-fifth O site, O(25) is bonded to one Ti(8), one Ti(9), one Fe(4), and one Fe(9) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(14)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(19)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(10)TiFe3 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid, and  an edgeedge with one O(1)Ti2Fe2 trigonal pyramid. In the twenty-sixth O site, O(26) is bonded to one Ti(6), one Ti(7), one Fe(10), and one Fe(2) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(2)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(29)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(12)TiFe3 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid, and  an edgeedge with one O(24)Ti2Fe2 trigonal pyramid. In the twenty-seventh O site, O(27) is bonded in a distorted see-saw-like geometry to one Ti(3), one Ti(8), one Fe(11), and one Fe(9) atom. In the twenty-eighth O site, O(28) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(7), one Fe(3), and one Fe(9) atom. In the twenty-ninth O site, O(29) is bonded to one Ti(2), one Ti(7), one Fe(11), and one Fe(6) atom to form distorted OTi2Fe2 trigonal pyramids that share  a cornercorner with one O(1)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(26)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(6)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(9)Ti2Fe2 trigonal pyramid,  a cornercorner with one O(18)TiFe3 trigonal pyramid,  an edgeedge with one O(19)Ti2Fe2 trigonal pyramid, and  an edgeedge with one O(24)Ti2Fe2 trigonal pyramid. In the thirtieth O site, O(30) is bonded in a distorted see-saw-like geometry to one Ti(2), one Ti(3), one Fe(10), and one Fe(2) atom. is represented by the CIF card [CIF]
data_Ti9Fe11O30
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.915
_cell_length_b   7.606
_cell_length_c   9.191
_cell_angle_alpha   72.182
_cell_angle_beta   98.988
_cell_angle_gamma   113.081
_symmetry_Int_Tables_number   1
_cell_volume   545.327
_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
  Ti  Ti0  1  0.740  0.342  0.774  1.0
  Ti  Ti1  1  0.946  0.739  0.172  1.0
  Ti  Ti2  1  0.853  0.861  0.423  1.0
  Ti  Ti3  1  0.659  0.460  0.028  1.0
  Ti  Ti4  1  0.459  0.059  0.624  1.0
  Ti  Ti5  1  0.341  0.538  0.977  1.0
  Ti  Ti6  1  0.262  0.665  0.228  1.0
  Ti  Ti7  1  0.142  0.135  0.571  1.0
  Ti  Ti8  1  0.057  0.263  0.827  1.0
  Fe  Fe9  1  0.740  0.836  0.778  1.0
  Fe  Fe10  1  0.943  0.236  0.177  1.0
  Fe  Fe11  1  0.857  0.358  0.425  1.0
  Fe  Fe12  1  0.453  0.559  0.624  1.0
  Fe  Fe13  1  0.541  0.940  0.374  1.0
  Fe  Fe14  1  0.343  0.037  0.975  1.0
  Fe  Fe15  1  0.659  0.962  0.029  1.0
  Fe  Fe16  1  0.540  0.436  0.377  1.0
  Fe  Fe17  1  0.140  0.638  0.573  1.0
  Fe  Fe18  1  0.258  0.159  0.223  1.0
  Fe  Fe19  1  0.063  0.762  0.823  1.0
  O  O20  1  0.976  0.019  0.764  1.0
  O  O21  1  0.887  0.215  0.951  1.0
  O  O22  1  0.914  0.390  0.654  1.0
  O  O23  1  0.973  0.168  0.426  1.0
  O  O24  1  0.809  0.580  0.834  1.0
  O  O25  1  0.593  0.230  0.961  1.0
  O  O26  1  0.792  0.628  0.362  1.0
  O  O27  1  0.634  0.029  0.770  1.0
  O  O28  1  0.830  0.437  0.171  1.0
  O  O29  1  0.693  0.812  0.563  1.0
  O  O30  1  0.518  0.597  0.851  1.0
  O  O31  1  0.721  0.987  0.255  1.0
  O  O32  1  0.773  0.765  0.021  1.0
  O  O33  1  0.569  0.359  0.635  1.0
  O  O34  1  0.606  0.182  0.442  1.0
  O  O35  1  0.384  0.823  0.566  1.0
  O  O36  1  0.226  0.237  0.967  1.0
  O  O37  1  0.431  0.631  0.371  1.0
  O  O38  1  0.287  0.016  0.749  1.0
  O  O39  1  0.486  0.411  0.145  1.0
  O  O40  1  0.311  0.185  0.452  1.0
  O  O41  1  0.169  0.563  0.830  1.0
  O  O42  1  0.367  0.960  0.220  1.0
  O  O43  1  0.417  0.773  0.036  1.0
  O  O44  1  0.209  0.368  0.639  1.0
  O  O45  1  0.192  0.432  0.159  1.0
  O  O46  1  0.028  0.842  0.569  1.0
  O  O47  1  0.088  0.615  0.345  1.0
  O  O48  1  0.111  0.786  0.050  1.0
  O  O49  1  0.014  0.976  0.235  1.0
[/CIF]
.