V9NiO15 is Ilmenite-like structured and crystallizes in the triclinic P-1 space group. There are nine inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(10), one O(13), one O(3), one O(5), and one O(6) atom to form VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(8)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(9)O6 octahedra, corners with three equivalent V(4)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra, and  a faceface with one V(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. In the second V site, V(2) is bonded to one O(10), one O(2), one O(6), one O(9), and two equivalent O(1) atoms to form VO6 octahedra that share  a cornercorner with one V(1)O6 octahedra,  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra, corners with three equivalent V(3)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(8)O6 octahedra, and  a faceface with one V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the third V site, V(3) is bonded to one O(10), one O(14), one O(3), one O(7), and two equivalent O(2) atoms to form a mixture of corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 46-61°. In the fourth V site, V(4) is bonded to one O(14), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form VO6 octahedra that share  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one V(7)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra, corners with three equivalent V(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(6)O6 octahedra,  an edgeedge with one V(9)O6 octahedra, and  a faceface with one V(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-61°. In the fifth V site, V(5) is bonded to one O(13), one O(15), one O(4), one O(6), and two equivalent O(11) atoms to form VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(6)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(8)O6 octahedra, corners with three equivalent V(9)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra, and  a faceface with one V(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-60°. In the sixth V site, V(6) is bonded to one O(11), one O(13), one O(3), one O(4), one O(7), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(8)O6 octahedra,  an edgeedge with one V(9)O6 octahedra, and  a faceface with one V(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-60°. In the seventh V site, V(7) is bonded to one O(12), one O(14), one O(7), one O(8), and two equivalent O(9) atoms to form VO6 octahedra that share  a cornercorner with one V(4)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(8)O6 octahedra, corners with two equivalent V(9)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(7)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra, and  a faceface with one V(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. In the eighth V site, V(8) is bonded to one O(10), one O(11), one O(7), one O(9), and two equivalent O(12) atoms to form VO6 octahedra that share  a cornercorner with one V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(6)O6 octahedra,  an edgeedge with one V(8)O6 octahedra, and  a faceface with one V(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the ninth V site, V(9) is bonded to one O(13), one O(14), one O(5), one O(8), and two equivalent O(15) atoms to form VO6 octahedra that share  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with three equivalent V(5)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(6)O6 octahedra,  an edgeedge with one V(9)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-60°. Ni(1) is bonded to one O(1), one O(12), one O(15), one O(4), one O(5), and one O(8) atom to form distorted NiO6 octahedra that share  a cornercorner with one V(9)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one V(7)O6 octahedra, and  a faceface with one V(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-62°. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded to one V(1), two equivalent V(2), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid, corners with two equivalent O(2)V4 trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(5)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid, and  an edgeedge with one O(6)V4 trigonal pyramid. In the second O site, O(2) is bonded to one V(2), one V(4), and two equivalent V(3) atoms to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(1)V3Ni trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids, corners with three equivalent O(10)V4 trigonal pyramids,  an edgeedge with one O(14)V4 trigonal pyramid,  an edgeedge with one O(2)V4 trigonal pyramid,  an edgeedge with one O(3)V4 trigonal pyramid, and  an edgeedge with one O(6)V4 trigonal pyramid. In the third O site, O(3) is bonded to one V(1), one V(3), one V(4), and one V(6) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(13)V4 trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid,  an edgeedge with one O(14)V4 trigonal pyramid, and  an edgeedge with one O(2)V4 trigonal pyramid. In the fourth O site, O(4) is bonded to one V(4), one V(5), one V(6), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid,  an edgeedge with one O(13)V4 trigonal pyramid, and  an edgeedge with one O(3)V4 trigonal pyramid. In the fifth O site, O(5) is bonded to one V(1), one V(4), one V(9), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid, corners with two equivalent O(4)V3Ni trigonal pyramids, corners with two equivalent O(13)V4 trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(8)V3Ni trigonal pyramid, and  an edgeedge with one O(14)V4 trigonal pyramid. In the sixth O site, O(6) is bonded to one V(1), one V(2), one V(4), and one V(5) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(4)V3Ni trigonal pyramids, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(11)V4 trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid,  an edgeedge with one O(13)V4 trigonal pyramid, and  an edgeedge with one O(2)V4 trigonal pyramid. In the seventh O site, O(7) is bonded to one V(3), one V(6), one V(7), and one V(8) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(10)V4 trigonal pyramids, corners with two equivalent O(2)V4 trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid,  an edgeedge with one O(14)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the eighth O site, O(8) is bonded to one V(6), one V(7), one V(9), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid, corners with two equivalent O(4)V3Ni trigonal pyramids, corners with two equivalent O(14)V4 trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(5)V3Ni trigonal pyramid, and  an edgeedge with one O(13)V4 trigonal pyramid. In the ninth O site, O(9) is bonded to one V(2), one V(8), and two equivalent V(7) atoms to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(1)V3Ni trigonal pyramids, corners with two equivalent O(12)V3Ni trigonal pyramids, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(14)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid,  an edgeedge with one O(7)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the tenth O site, O(10) is bonded to one V(1), one V(2), one V(3), and one V(8) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid, corners with two equivalent O(12)V3Ni trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids, corners with three equivalent O(2)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(3)V4 trigonal pyramid,  an edgeedge with one O(6)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the eleventh O site, O(11) is bonded to one V(6), one V(8), and two equivalent V(5) atoms to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(12)V3Ni trigonal pyramids, corners with two equivalent O(15)V3Ni trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid,  an edgeedge with one O(13)V4 trigonal pyramid, and  an edgeedge with one O(7)V4 trigonal pyramid. In the twelfth O site, O(12) is bonded to one V(7), two equivalent V(8), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(10)V4 trigonal pyramids, corners with two equivalent O(11)V4 trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(8)V3Ni trigonal pyramid,  an edgeedge with one O(7)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one V(1), one V(5), one V(6), and one V(9) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids, corners with three equivalent O(15)V3Ni trigonal pyramids,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(8)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid, and  an edgeedge with one O(6)V4 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one V(3), one V(4), one V(7), and one V(9) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid, corners with two equivalent O(15)V3Ni trigonal pyramids, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(5)V3Ni trigonal pyramid,  an edgeedge with one O(2)V4 trigonal pyramid,  an edgeedge with one O(3)V4 trigonal pyramid, and  an edgeedge with one O(7)V4 trigonal pyramid. In the fifteenth O site, O(15) is bonded to one V(5), two equivalent V(9), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid, corners with two equivalent O(11)V4 trigonal pyramids, corners with two equivalent O(14)V4 trigonal pyramids, corners with three equivalent O(13)V4 trigonal pyramids,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(5)V3Ni trigonal pyramid, and  an edgeedge with one O(8)V3Ni trigonal pyramid.
V9NiO15 is Ilmenite-like structured and crystallizes in the triclinic P-1 space group. There are nine inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(10), one O(13), one O(3), one O(5), and one O(6) atom to form VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(8)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(9)O6 octahedra, corners with three equivalent V(4)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra, and  a faceface with one V(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. The V(1)-O(1) bond length is 2.08 Å. The V(1)-O(10) bond length is 2.12 Å. The V(1)-O(13) bond length is 2.01 Å. The V(1)-O(3) bond length is 2.01 Å. The V(1)-O(5) bond length is 1.98 Å. The V(1)-O(6) bond length is 2.10 Å. In the second V site, V(2) is bonded to one O(10), one O(2), one O(6), one O(9), and two equivalent O(1) atoms to form VO6 octahedra that share  a cornercorner with one V(1)O6 octahedra,  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra, corners with three equivalent V(3)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(8)O6 octahedra, and  a faceface with one V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. The V(2)-O(10) bond length is 2.11 Å. The V(2)-O(2) bond length is 2.02 Å. The V(2)-O(6) bond length is 2.13 Å. The V(2)-O(9) bond length is 2.01 Å. There is one shorter (1.97 Å) and one longer (2.07 Å) V(2)-O(1) bond length. In the third V site, V(3) is bonded to one O(10), one O(14), one O(3), one O(7), and two equivalent O(2) atoms to form a mixture of corner, edge, and face-sharing VO6 octahedra. The corner-sharing octahedral tilt angles range from 46-61°. The V(3)-O(10) bond length is 2.00 Å. The V(3)-O(14) bond length is 2.12 Å. The V(3)-O(3) bond length is 2.09 Å. The V(3)-O(7) bond length is 1.99 Å. There is one shorter (2.01 Å) and one longer (2.11 Å) V(3)-O(2) bond length. In the fourth V site, V(4) is bonded to one O(14), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form VO6 octahedra that share  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one V(7)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra, corners with three equivalent V(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(6)O6 octahedra,  an edgeedge with one V(9)O6 octahedra, and  a faceface with one V(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-61°. The V(4)-O(14) bond length is 2.12 Å. The V(4)-O(2) bond length is 2.11 Å. The V(4)-O(3) bond length is 2.11 Å. The V(4)-O(4) bond length is 1.98 Å. The V(4)-O(5) bond length is 1.98 Å. The V(4)-O(6) bond length is 2.01 Å. In the fifth V site, V(5) is bonded to one O(13), one O(15), one O(4), one O(6), and two equivalent O(11) atoms to form VO6 octahedra that share  a cornercorner with one V(2)O6 octahedra,  a cornercorner with one V(6)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(8)O6 octahedra, corners with three equivalent V(9)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra, and  a faceface with one V(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-60°. The V(5)-O(13) bond length is 2.13 Å. The V(5)-O(15) bond length is 1.98 Å. The V(5)-O(4) bond length is 2.07 Å. The V(5)-O(6) bond length is 2.01 Å. There is one shorter (2.01 Å) and one longer (2.10 Å) V(5)-O(11) bond length. In the sixth V site, V(6) is bonded to one O(11), one O(13), one O(3), one O(4), one O(7), and one O(8) atom to form VO6 octahedra that share  a cornercorner with one V(5)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(8)O6 octahedra,  an edgeedge with one V(9)O6 octahedra, and  a faceface with one V(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-60°. The V(6)-O(11) bond length is 2.11 Å. The V(6)-O(13) bond length is 2.11 Å. The V(6)-O(3) bond length is 2.01 Å. The V(6)-O(4) bond length is 2.06 Å. The V(6)-O(7) bond length is 2.01 Å. The V(6)-O(8) bond length is 1.97 Å. In the seventh V site, V(7) is bonded to one O(12), one O(14), one O(7), one O(8), and two equivalent O(9) atoms to form VO6 octahedra that share  a cornercorner with one V(4)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(8)O6 octahedra, corners with two equivalent V(9)O6 octahedra,  an edgeedge with one V(3)O6 octahedra,  an edgeedge with one V(7)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra, and  a faceface with one V(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. The V(7)-O(12) bond length is 2.07 Å. The V(7)-O(14) bond length is 2.01 Å. The V(7)-O(7) bond length is 2.12 Å. The V(7)-O(8) bond length is 1.98 Å. There is one shorter (2.02 Å) and one longer (2.11 Å) V(7)-O(9) bond length. In the eighth V site, V(8) is bonded to one O(10), one O(11), one O(7), one O(9), and two equivalent O(12) atoms to form VO6 octahedra that share  a cornercorner with one V(1)O6 octahedra, corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(5)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with two equivalent Ni(1)O6 octahedra,  an edgeedge with one V(2)O6 octahedra,  an edgeedge with one V(6)O6 octahedra,  an edgeedge with one V(8)O6 octahedra, and  a faceface with one V(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. The V(8)-O(10) bond length is 2.00 Å. The V(8)-O(11) bond length is 2.01 Å. The V(8)-O(7) bond length is 2.11 Å. The V(8)-O(9) bond length is 2.13 Å. There is one shorter (1.97 Å) and one longer (2.07 Å) V(8)-O(12) bond length. In the ninth V site, V(9) is bonded to one O(13), one O(14), one O(5), one O(8), and two equivalent O(15) atoms to form VO6 octahedra that share  a cornercorner with one V(3)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra, corners with two equivalent V(1)O6 octahedra, corners with two equivalent V(7)O6 octahedra, corners with three equivalent V(5)O6 octahedra,  an edgeedge with one V(4)O6 octahedra,  an edgeedge with one V(6)O6 octahedra,  an edgeedge with one V(9)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-60°. The V(9)-O(13) bond length is 2.03 Å. The V(9)-O(14) bond length is 2.03 Å. The V(9)-O(5) bond length is 2.06 Å. The V(9)-O(8) bond length is 2.06 Å. There is one shorter (1.98 Å) and one longer (2.06 Å) V(9)-O(15) bond length. Ni(1) is bonded to one O(1), one O(12), one O(15), one O(4), one O(5), and one O(8) atom to form distorted NiO6 octahedra that share  a cornercorner with one V(9)O6 octahedra, corners with two equivalent V(2)O6 octahedra, corners with two equivalent V(4)O6 octahedra, corners with two equivalent V(6)O6 octahedra, corners with two equivalent V(8)O6 octahedra,  an edgeedge with one V(1)O6 octahedra,  an edgeedge with one V(5)O6 octahedra,  an edgeedge with one V(7)O6 octahedra, and  a faceface with one V(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-62°. The Ni(1)-O(1) bond length is 2.03 Å. The Ni(1)-O(12) bond length is 2.03 Å. The Ni(1)-O(15) bond length is 2.19 Å. The Ni(1)-O(4) bond length is 2.03 Å. The Ni(1)-O(5) bond length is 2.19 Å. The Ni(1)-O(8) bond length is 2.19 Å. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded to one V(1), two equivalent V(2), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid, corners with two equivalent O(2)V4 trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(5)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid, and  an edgeedge with one O(6)V4 trigonal pyramid. In the second O site, O(2) is bonded to one V(2), one V(4), and two equivalent V(3) atoms to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(1)V3Ni trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids, corners with three equivalent O(10)V4 trigonal pyramids,  an edgeedge with one O(14)V4 trigonal pyramid,  an edgeedge with one O(2)V4 trigonal pyramid,  an edgeedge with one O(3)V4 trigonal pyramid, and  an edgeedge with one O(6)V4 trigonal pyramid. In the third O site, O(3) is bonded to one V(1), one V(3), one V(4), and one V(6) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(13)V4 trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid,  an edgeedge with one O(14)V4 trigonal pyramid, and  an edgeedge with one O(2)V4 trigonal pyramid. In the fourth O site, O(4) is bonded to one V(4), one V(5), one V(6), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid,  an edgeedge with one O(13)V4 trigonal pyramid, and  an edgeedge with one O(3)V4 trigonal pyramid. In the fifth O site, O(5) is bonded to one V(1), one V(4), one V(9), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid, corners with two equivalent O(4)V3Ni trigonal pyramids, corners with two equivalent O(13)V4 trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(8)V3Ni trigonal pyramid, and  an edgeedge with one O(14)V4 trigonal pyramid. In the sixth O site, O(6) is bonded to one V(1), one V(2), one V(4), and one V(5) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(4)V3Ni trigonal pyramids, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(11)V4 trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid,  an edgeedge with one O(13)V4 trigonal pyramid, and  an edgeedge with one O(2)V4 trigonal pyramid. In the seventh O site, O(7) is bonded to one V(3), one V(6), one V(7), and one V(8) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(10)V4 trigonal pyramids, corners with two equivalent O(2)V4 trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid,  an edgeedge with one O(14)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the eighth O site, O(8) is bonded to one V(6), one V(7), one V(9), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid, corners with two equivalent O(4)V3Ni trigonal pyramids, corners with two equivalent O(14)V4 trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(5)V3Ni trigonal pyramid, and  an edgeedge with one O(13)V4 trigonal pyramid. In the ninth O site, O(9) is bonded to one V(2), one V(8), and two equivalent V(7) atoms to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(1)V3Ni trigonal pyramids, corners with two equivalent O(12)V3Ni trigonal pyramids, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(14)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(10)V4 trigonal pyramid,  an edgeedge with one O(7)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the tenth O site, O(10) is bonded to one V(1), one V(2), one V(3), and one V(8) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid, corners with two equivalent O(12)V3Ni trigonal pyramids, corners with two equivalent O(7)V4 trigonal pyramids, corners with three equivalent O(2)V4 trigonal pyramids,  an edgeedge with one O(1)V3Ni trigonal pyramid,  an edgeedge with one O(3)V4 trigonal pyramid,  an edgeedge with one O(6)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the eleventh O site, O(11) is bonded to one V(6), one V(8), and two equivalent V(5) atoms to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(3)V4 trigonal pyramid,  a cornercorner with one O(9)V4 trigonal pyramid, corners with two equivalent O(12)V3Ni trigonal pyramids, corners with two equivalent O(15)V3Ni trigonal pyramids, corners with two equivalent O(6)V4 trigonal pyramids,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid,  an edgeedge with one O(13)V4 trigonal pyramid, and  an edgeedge with one O(7)V4 trigonal pyramid. In the twelfth O site, O(12) is bonded to one V(7), two equivalent V(8), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(15)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(10)V4 trigonal pyramids, corners with two equivalent O(11)V4 trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(12)V3Ni trigonal pyramid,  an edgeedge with one O(8)V3Ni trigonal pyramid,  an edgeedge with one O(7)V4 trigonal pyramid, and  an edgeedge with one O(9)V4 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one V(1), one V(5), one V(6), and one V(9) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(11)V4 trigonal pyramid,  a cornercorner with one O(14)V4 trigonal pyramid,  a cornercorner with one O(7)V4 trigonal pyramid, corners with two equivalent O(5)V3Ni trigonal pyramids, corners with two equivalent O(3)V4 trigonal pyramids, corners with three equivalent O(15)V3Ni trigonal pyramids,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(8)V3Ni trigonal pyramid,  an edgeedge with one O(11)V4 trigonal pyramid, and  an edgeedge with one O(6)V4 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one V(3), one V(4), one V(7), and one V(9) atom to form distorted OV4 trigonal pyramids that share  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(4)V3Ni trigonal pyramid,  a cornercorner with one O(10)V4 trigonal pyramid,  a cornercorner with one O(13)V4 trigonal pyramid,  a cornercorner with one O(2)V4 trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid, corners with two equivalent O(15)V3Ni trigonal pyramids, corners with two equivalent O(8)V3Ni trigonal pyramids, corners with two equivalent O(9)V4 trigonal pyramids,  an edgeedge with one O(5)V3Ni trigonal pyramid,  an edgeedge with one O(2)V4 trigonal pyramid,  an edgeedge with one O(3)V4 trigonal pyramid, and  an edgeedge with one O(7)V4 trigonal pyramid. In the fifteenth O site, O(15) is bonded to one V(5), two equivalent V(9), and one Ni(1) atom to form distorted OV3Ni trigonal pyramids that share  a cornercorner with one O(1)V3Ni trigonal pyramid,  a cornercorner with one O(12)V3Ni trigonal pyramid,  a cornercorner with one O(5)V3Ni trigonal pyramid,  a cornercorner with one O(8)V3Ni trigonal pyramid,  a cornercorner with one O(6)V4 trigonal pyramid, corners with two equivalent O(11)V4 trigonal pyramids, corners with two equivalent O(14)V4 trigonal pyramids, corners with three equivalent O(13)V4 trigonal pyramids,  an edgeedge with one O(15)V3Ni trigonal pyramid,  an edgeedge with one O(4)V3Ni trigonal pyramid,  an edgeedge with one O(5)V3Ni trigonal pyramid, and  an edgeedge with one O(8)V3Ni trigonal pyramid.