Li12Cr5O16 crystallizes in the triclinic P1 space group. There are twelve inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted trigonal planar geometry to one O(14), one O(15), one O(16), one O(4), and one O(8) atom. In the second Li site, Li(2) is bonded to one O(1), one O(16), one O(2), one O(5), one O(6), and one O(9) atom to form LiO6 octahedra that share corners with two equivalent Li(9)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Cr(4)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and  a faceface with one Li(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 44-47°. In the third Li site, Li(3) is bonded in a 5-coordinate geometry to one O(10), one O(11), one O(16), one O(4), one O(6), and one O(8) atom. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(10), one O(15), one O(3), one O(4), one O(7), and one O(8) atom. In the fifth Li site, Li(5) is bonded to one O(1), one O(12), one O(5), one O(7), and one O(9) atom to form LiO5 square pyramids that share  a cornercorner with one Li(10)O6 octahedra,  a cornercorner with one Li(9)O6 octahedra, corners with two equivalent Li(6)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra,  an edgeedge with one Li(8)O6 octahedra,  an edgeedge with one Li(9)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and  a faceface with one Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-87°. In the sixth Li site, Li(6) is bonded to one O(1), one O(11), one O(13), one O(2), one O(5), and one O(6) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(9)O6 octahedra, corners with three equivalent Cr(4)O6 octahedra, corners with two equivalent Li(5)O5 square pyramids,  an edgeedge with one Li(7)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and  a faceface with one Cr(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-43°. In the seventh Li site, Li(7) is bonded to one O(10), one O(11), one O(14), one O(16), one O(2), and one O(4) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(8)O6 octahedra, corners with three equivalent Cr(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra, edges with two equivalent Cr(4)O6 octahedra, and  a faceface with one Li(10)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-49°. In the eighth Li site, Li(8) is bonded to one O(12), one O(14), one O(3), one O(4), one O(7), and one O(8) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with three equivalent Cr(3)O6 octahedra,  an edgeedge with one Li(9)O6 octahedra, edges with two equivalent Li(10)O6 octahedra,  an edgeedge with one Li(5)O5 square pyramid, and  a faceface with one Cr(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-49°. In the ninth Li site, Li(9) is bonded to one O(1), one O(12), one O(13), one O(15), one O(3), and one O(9) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(6)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Li(10)O6 octahedra,  a cornercorner with one Li(5)O5 square pyramid,  an edgeedge with one Li(8)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra,  an edgeedge with one Li(5)O5 square pyramid, and  a faceface with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-49°. In the tenth Li site, Li(10) is bonded to one O(10), one O(12), one O(14), one O(15), one O(3), and one O(4) atom to form distorted LiO6 octahedra that share corners with two equivalent Cr(4)O6 octahedra, corners with three equivalent Li(9)O6 octahedra,  a cornercorner with one Li(5)O5 square pyramid,  an edgeedge with one Cr(3)O6 octahedra, edges with two equivalent Li(8)O6 octahedra, and  a faceface with one Li(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-46°. In the eleventh Li site, Li(11) is bonded in a 6-coordinate geometry to one O(10), one O(14), one O(16), one O(2), one O(6), and one O(8) atom. In the twelfth Li site, Li(12) is bonded in a 6-coordinate geometry to one O(13), one O(15), one O(3), one O(5), one O(7), and one O(9) atom. There are five inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(11), one O(13), one O(16), one O(2), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Cr(3)O6 octahedra, corners with three equivalent Li(7)O6 octahedra, corners with two equivalent Li(5)O5 square pyramids,  an edgeedge with one Cr(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and  a faceface with one Li(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-51°. In the second Cr site, Cr(2) is bonded to one O(11), one O(13), one O(16), one O(5), one O(6), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Li(9)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Li(5)O5 square pyramids,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Cr(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, and edges with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-51°. In the third Cr site, Cr(3) is bonded to one O(1), one O(12), one O(13), one O(3), one O(5), and one O(7) atom to form distorted CrO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Li(8)O6 octahedra,  an edgeedge with one Li(10)O6 octahedra, edges with two equivalent Li(9)O6 octahedra, edges with two equivalent Li(5)O5 square pyramids, and  a faceface with one Li(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-51°. In the fourth Cr site, Cr(4) is bonded to one O(11), one O(14), one O(2), one O(4), one O(6), and one O(8) atom to form CrO6 octahedra that share corners with two equivalent Li(10)O6 octahedra, corners with three equivalent Li(6)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, and  a faceface with one Li(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-46°. In the fifth Cr site, Cr(5) is bonded in a 5-coordinate geometry to one O(10), one O(12), one O(14), one O(15), one O(7), and one O(8) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one Li(5), one Li(6), one Li(9), one Cr(1), and one Cr(3) atom to form distorted OLi4Cr2 pentagonal pyramids that share corners with three equivalent O(12)Li4Cr2 octahedra, corners with three equivalent O(2)Li4Cr2 octahedra,  an edgeedge with one O(11)Li3Cr3 octahedra,  an edgeedge with one O(6)Li4Cr2 octahedra,  an edgeedge with one O(7)Li4Cr2 octahedra, and  an edgeedge with one O(3)Li5Cr octahedra. The corner-sharing octahedral tilt angles range from 4-14°. In the second O site, O(2) is bonded to one Li(11), one Li(2), one Li(6), one Li(7), one Cr(1), and one Cr(4) atom to form OLi4Cr2 octahedra that share corners with three equivalent O(1)Li4Cr2 pentagonal pyramids, edges with two equivalent O(11)Li3Cr3 octahedra, edges with two equivalent O(6)Li4Cr2 octahedra, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the third O site, O(3) is bonded to one Li(10), one Li(12), one Li(4), one Li(8), one Li(9), and one Cr(3) atom to form OLi5Cr octahedra that share edges with two equivalent O(12)Li4Cr2 octahedra, edges with two equivalent O(7)Li4Cr2 octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the fourth O site, O(4) is bonded in a 7-coordinate geometry to one Li(1), one Li(10), one Li(3), one Li(4), one Li(7), one Li(8), and one Cr(4) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Li(12), one Li(2), one Li(5), one Li(6), one Cr(2), and one Cr(3) atom. In the sixth O site, O(6) is bonded to one Li(11), one Li(2), one Li(3), one Li(6), one Cr(2), and one Cr(4) atom to form OLi4Cr2 octahedra that share edges with two equivalent O(11)Li3Cr3 octahedra, edges with two equivalent O(2)Li4Cr2 octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the seventh O site, O(7) is bonded to one Li(12), one Li(4), one Li(5), one Li(8), one Cr(3), and one Cr(5) atom to form OLi4Cr2 octahedra that share edges with two equivalent O(12)Li4Cr2 octahedra, edges with two equivalent O(3)Li5Cr octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the eighth O site, O(8) is bonded in a 7-coordinate geometry to one Li(1), one Li(11), one Li(3), one Li(4), one Li(8), one Cr(4), and one Cr(5) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Li(12), one Li(2), one Li(5), one Li(9), one Cr(1), and one Cr(2) atom. In the tenth O site, O(10) is bonded to one Li(10), one Li(11), one Li(3), one Li(4), one Li(7), and one Cr(5) atom to form distorted OLi5Cr pentagonal pyramids that share  an edgeedge with one O(11)Li3Cr3 octahedra,  an edgeedge with one O(12)Li4Cr2 octahedra,  an edgeedge with one O(2)Li4Cr2 octahedra,  an edgeedge with one O(6)Li4Cr2 octahedra,  an edgeedge with one O(7)Li4Cr2 octahedra, and  an edgeedge with one O(3)Li5Cr octahedra. In the eleventh O site, O(11) is bonded to one Li(3), one Li(6), one Li(7), one Cr(1), one Cr(2), and one Cr(4) atom to form OLi3Cr3 octahedra that share edges with two equivalent O(2)Li4Cr2 octahedra, edges with two equivalent O(6)Li4Cr2 octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the twelfth O site, O(12) is bonded to one Li(10), one Li(5), one Li(8), one Li(9), one Cr(3), and one Cr(5) atom to form OLi4Cr2 octahedra that share corners with three equivalent O(1)Li4Cr2 pentagonal pyramids, edges with two equivalent O(7)Li4Cr2 octahedra, edges with two equivalent O(3)Li5Cr octahedra, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the thirteenth O site, O(13) is bonded in a 6-coordinate geometry to one Li(12), one Li(6), one Li(9), one Cr(1), one Cr(2), and one Cr(3) atom. In the fourteenth O site, O(14) is bonded in a 7-coordinate geometry to one Li(1), one Li(10), one Li(11), one Li(7), one Li(8), one Cr(4), and one Cr(5) atom. In the fifteenth O site, O(15) is bonded in a 6-coordinate geometry to one Li(1), one Li(10), one Li(12), one Li(4), one Li(9), and one Cr(5) atom. In the sixteenth O site, O(16) is bonded in a 7-coordinate geometry to one Li(1), one Li(11), one Li(2), one Li(3), one Li(7), one Cr(1), and one Cr(2) atom.
Li12Cr5O16 crystallizes in the triclinic P1 space group. There are twelve inequivalent Li sites. In the first Li site, Li(1) is bonded in a distorted trigonal planar geometry to one O(14), one O(15), one O(16), one O(4), and one O(8) atom. The Li(1)-O(14) bond length is 1.82 Å. The Li(1)-O(15) bond length is 2.28 Å. The Li(1)-O(16) bond length is 2.32 Å. The Li(1)-O(4) bond length is 1.77 Å. The Li(1)-O(8) bond length is 1.82 Å. In the second Li site, Li(2) is bonded to one O(1), one O(16), one O(2), one O(5), one O(6), and one O(9) atom to form LiO6 octahedra that share corners with two equivalent Li(9)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Cr(4)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and  a faceface with one Li(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 44-47°. The Li(2)-O(1) bond length is 2.22 Å. The Li(2)-O(16) bond length is 2.03 Å. The Li(2)-O(2) bond length is 2.04 Å. The Li(2)-O(5) bond length is 2.14 Å. The Li(2)-O(6) bond length is 2.04 Å. The Li(2)-O(9) bond length is 2.09 Å. In the third Li site, Li(3) is bonded in a 5-coordinate geometry to one O(10), one O(11), one O(16), one O(4), one O(6), and one O(8) atom. The Li(3)-O(10) bond length is 2.20 Å. The Li(3)-O(11) bond length is 2.01 Å. The Li(3)-O(16) bond length is 2.21 Å. The Li(3)-O(4) bond length is 2.11 Å. The Li(3)-O(6) bond length is 1.92 Å. The Li(3)-O(8) bond length is 2.52 Å. In the fourth Li site, Li(4) is bonded in a 6-coordinate geometry to one O(10), one O(15), one O(3), one O(4), one O(7), and one O(8) atom. The Li(4)-O(10) bond length is 2.07 Å. The Li(4)-O(15) bond length is 2.03 Å. The Li(4)-O(3) bond length is 1.99 Å. The Li(4)-O(4) bond length is 2.43 Å. The Li(4)-O(7) bond length is 2.07 Å. The Li(4)-O(8) bond length is 2.15 Å. In the fifth Li site, Li(5) is bonded to one O(1), one O(12), one O(5), one O(7), and one O(9) atom to form LiO5 square pyramids that share  a cornercorner with one Li(10)O6 octahedra,  a cornercorner with one Li(9)O6 octahedra, corners with two equivalent Li(6)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra,  an edgeedge with one Li(8)O6 octahedra,  an edgeedge with one Li(9)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and  a faceface with one Li(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-87°. The Li(5)-O(1) bond length is 2.07 Å. The Li(5)-O(12) bond length is 2.16 Å. The Li(5)-O(5) bond length is 2.17 Å. The Li(5)-O(7) bond length is 2.14 Å. The Li(5)-O(9) bond length is 2.06 Å. In the sixth Li site, Li(6) is bonded to one O(1), one O(11), one O(13), one O(2), one O(5), and one O(6) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(9)O6 octahedra, corners with three equivalent Cr(4)O6 octahedra, corners with two equivalent Li(5)O5 square pyramids,  an edgeedge with one Li(7)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and  a faceface with one Cr(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-43°. The Li(6)-O(1) bond length is 2.15 Å. The Li(6)-O(11) bond length is 2.10 Å. The Li(6)-O(13) bond length is 2.08 Å. The Li(6)-O(2) bond length is 2.14 Å. The Li(6)-O(5) bond length is 2.24 Å. The Li(6)-O(6) bond length is 2.00 Å. In the seventh Li site, Li(7) is bonded to one O(10), one O(11), one O(14), one O(16), one O(2), and one O(4) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(8)O6 octahedra, corners with three equivalent Cr(1)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Li(6)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra, edges with two equivalent Cr(4)O6 octahedra, and  a faceface with one Li(10)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-49°. The Li(7)-O(10) bond length is 2.14 Å. The Li(7)-O(11) bond length is 2.01 Å. The Li(7)-O(14) bond length is 2.27 Å. The Li(7)-O(16) bond length is 2.35 Å. The Li(7)-O(2) bond length is 2.01 Å. The Li(7)-O(4) bond length is 2.13 Å. In the eighth Li site, Li(8) is bonded to one O(12), one O(14), one O(3), one O(4), one O(7), and one O(8) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(7)O6 octahedra, corners with three equivalent Cr(3)O6 octahedra,  an edgeedge with one Li(9)O6 octahedra, edges with two equivalent Li(10)O6 octahedra,  an edgeedge with one Li(5)O5 square pyramid, and  a faceface with one Cr(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-49°. The Li(8)-O(12) bond length is 2.13 Å. The Li(8)-O(14) bond length is 2.13 Å. The Li(8)-O(3) bond length is 2.06 Å. The Li(8)-O(4) bond length is 2.32 Å. The Li(8)-O(7) bond length is 2.15 Å. The Li(8)-O(8) bond length is 2.13 Å. In the ninth Li site, Li(9) is bonded to one O(1), one O(12), one O(13), one O(15), one O(3), and one O(9) atom to form distorted LiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(6)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Li(10)O6 octahedra,  a cornercorner with one Li(5)O5 square pyramid,  an edgeedge with one Li(8)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra,  an edgeedge with one Li(5)O5 square pyramid, and  a faceface with one Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-49°. The Li(9)-O(1) bond length is 2.09 Å. The Li(9)-O(12) bond length is 2.05 Å. The Li(9)-O(13) bond length is 2.21 Å. The Li(9)-O(15) bond length is 2.15 Å. The Li(9)-O(3) bond length is 1.98 Å. The Li(9)-O(9) bond length is 2.16 Å. In the tenth Li site, Li(10) is bonded to one O(10), one O(12), one O(14), one O(15), one O(3), and one O(4) atom to form distorted LiO6 octahedra that share corners with two equivalent Cr(4)O6 octahedra, corners with three equivalent Li(9)O6 octahedra,  a cornercorner with one Li(5)O5 square pyramid,  an edgeedge with one Cr(3)O6 octahedra, edges with two equivalent Li(8)O6 octahedra, and  a faceface with one Li(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-46°. The Li(10)-O(10) bond length is 2.13 Å. The Li(10)-O(12) bond length is 2.07 Å. The Li(10)-O(14) bond length is 2.14 Å. The Li(10)-O(15) bond length is 2.00 Å. The Li(10)-O(3) bond length is 2.00 Å. The Li(10)-O(4) bond length is 2.34 Å. In the eleventh Li site, Li(11) is bonded in a 6-coordinate geometry to one O(10), one O(14), one O(16), one O(2), one O(6), and one O(8) atom. The Li(11)-O(10) bond length is 2.08 Å. The Li(11)-O(14) bond length is 2.22 Å. The Li(11)-O(16) bond length is 2.08 Å. The Li(11)-O(2) bond length is 1.93 Å. The Li(11)-O(6) bond length is 1.91 Å. The Li(11)-O(8) bond length is 2.27 Å. In the twelfth Li site, Li(12) is bonded in a 6-coordinate geometry to one O(13), one O(15), one O(3), one O(5), one O(7), and one O(9) atom. The Li(12)-O(13) bond length is 2.11 Å. The Li(12)-O(15) bond length is 2.01 Å. The Li(12)-O(3) bond length is 2.01 Å. The Li(12)-O(5) bond length is 2.17 Å. The Li(12)-O(7) bond length is 2.03 Å. The Li(12)-O(9) bond length is 2.44 Å. There are five inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(11), one O(13), one O(16), one O(2), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Cr(3)O6 octahedra, corners with three equivalent Li(7)O6 octahedra, corners with two equivalent Li(5)O5 square pyramids,  an edgeedge with one Cr(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and  a faceface with one Li(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 4-51°. The Cr(1)-O(1) bond length is 2.00 Å. The Cr(1)-O(11) bond length is 2.03 Å. The Cr(1)-O(13) bond length is 2.04 Å. The Cr(1)-O(16) bond length is 1.94 Å. The Cr(1)-O(2) bond length is 1.95 Å. The Cr(1)-O(9) bond length is 1.89 Å. In the second Cr site, Cr(2) is bonded to one O(11), one O(13), one O(16), one O(5), one O(6), and one O(9) atom to form CrO6 octahedra that share corners with two equivalent Li(9)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Li(5)O5 square pyramids,  an edgeedge with one Li(7)O6 octahedra,  an edgeedge with one Cr(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(6)O6 octahedra, and edges with two equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-51°. The Cr(2)-O(11) bond length is 2.05 Å. The Cr(2)-O(13) bond length is 2.06 Å. The Cr(2)-O(16) bond length is 2.01 Å. The Cr(2)-O(5) bond length is 2.06 Å. The Cr(2)-O(6) bond length is 1.99 Å. The Cr(2)-O(9) bond length is 1.98 Å. In the third Cr site, Cr(3) is bonded to one O(1), one O(12), one O(13), one O(3), one O(5), and one O(7) atom to form distorted CrO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, corners with three equivalent Li(8)O6 octahedra,  an edgeedge with one Li(10)O6 octahedra, edges with two equivalent Li(9)O6 octahedra, edges with two equivalent Li(5)O5 square pyramids, and  a faceface with one Li(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-51°. The Cr(3)-O(1) bond length is 1.98 Å. The Cr(3)-O(12) bond length is 2.08 Å. The Cr(3)-O(13) bond length is 2.21 Å. The Cr(3)-O(3) bond length is 1.82 Å. The Cr(3)-O(5) bond length is 1.85 Å. The Cr(3)-O(7) bond length is 2.02 Å. In the fourth Cr site, Cr(4) is bonded to one O(11), one O(14), one O(2), one O(4), one O(6), and one O(8) atom to form CrO6 octahedra that share corners with two equivalent Li(10)O6 octahedra, corners with three equivalent Li(6)O6 octahedra,  an edgeedge with one Li(2)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra, edges with two equivalent Li(7)O6 octahedra, and  a faceface with one Li(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-46°. The Cr(4)-O(11) bond length is 2.12 Å. The Cr(4)-O(14) bond length is 1.89 Å. The Cr(4)-O(2) bond length is 2.01 Å. The Cr(4)-O(4) bond length is 1.80 Å. The Cr(4)-O(6) bond length is 2.00 Å. The Cr(4)-O(8) bond length is 2.02 Å. In the fifth Cr site, Cr(5) is bonded in a 5-coordinate geometry to one O(10), one O(12), one O(14), one O(15), one O(7), and one O(8) atom. The Cr(5)-O(10) bond length is 1.75 Å. The Cr(5)-O(12) bond length is 1.83 Å. The Cr(5)-O(14) bond length is 2.46 Å. The Cr(5)-O(15) bond length is 1.78 Å. The Cr(5)-O(7) bond length is 1.94 Å. The Cr(5)-O(8) bond length is 2.03 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Li(2), one Li(5), one Li(6), one Li(9), one Cr(1), and one Cr(3) atom to form distorted OLi4Cr2 pentagonal pyramids that share corners with three equivalent O(12)Li4Cr2 octahedra, corners with three equivalent O(2)Li4Cr2 octahedra,  an edgeedge with one O(11)Li3Cr3 octahedra,  an edgeedge with one O(6)Li4Cr2 octahedra,  an edgeedge with one O(7)Li4Cr2 octahedra, and  an edgeedge with one O(3)Li5Cr octahedra. The corner-sharing octahedral tilt angles range from 4-14°. In the second O site, O(2) is bonded to one Li(11), one Li(2), one Li(6), one Li(7), one Cr(1), and one Cr(4) atom to form OLi4Cr2 octahedra that share corners with three equivalent O(1)Li4Cr2 pentagonal pyramids, edges with two equivalent O(11)Li3Cr3 octahedra, edges with two equivalent O(6)Li4Cr2 octahedra, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the third O site, O(3) is bonded to one Li(10), one Li(12), one Li(4), one Li(8), one Li(9), and one Cr(3) atom to form OLi5Cr octahedra that share edges with two equivalent O(12)Li4Cr2 octahedra, edges with two equivalent O(7)Li4Cr2 octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the fourth O site, O(4) is bonded in a 7-coordinate geometry to one Li(1), one Li(10), one Li(3), one Li(4), one Li(7), one Li(8), and one Cr(4) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Li(12), one Li(2), one Li(5), one Li(6), one Cr(2), and one Cr(3) atom. In the sixth O site, O(6) is bonded to one Li(11), one Li(2), one Li(3), one Li(6), one Cr(2), and one Cr(4) atom to form OLi4Cr2 octahedra that share edges with two equivalent O(11)Li3Cr3 octahedra, edges with two equivalent O(2)Li4Cr2 octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the seventh O site, O(7) is bonded to one Li(12), one Li(4), one Li(5), one Li(8), one Cr(3), and one Cr(5) atom to form OLi4Cr2 octahedra that share edges with two equivalent O(12)Li4Cr2 octahedra, edges with two equivalent O(3)Li5Cr octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the eighth O site, O(8) is bonded in a 7-coordinate geometry to one Li(1), one Li(11), one Li(3), one Li(4), one Li(8), one Cr(4), and one Cr(5) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Li(12), one Li(2), one Li(5), one Li(9), one Cr(1), and one Cr(2) atom. In the tenth O site, O(10) is bonded to one Li(10), one Li(11), one Li(3), one Li(4), one Li(7), and one Cr(5) atom to form distorted OLi5Cr pentagonal pyramids that share  an edgeedge with one O(11)Li3Cr3 octahedra,  an edgeedge with one O(12)Li4Cr2 octahedra,  an edgeedge with one O(2)Li4Cr2 octahedra,  an edgeedge with one O(6)Li4Cr2 octahedra,  an edgeedge with one O(7)Li4Cr2 octahedra, and  an edgeedge with one O(3)Li5Cr octahedra. In the eleventh O site, O(11) is bonded to one Li(3), one Li(6), one Li(7), one Cr(1), one Cr(2), and one Cr(4) atom to form OLi3Cr3 octahedra that share edges with two equivalent O(2)Li4Cr2 octahedra, edges with two equivalent O(6)Li4Cr2 octahedra,  an edgeedge with one O(1)Li4Cr2 pentagonal pyramid, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the twelfth O site, O(12) is bonded to one Li(10), one Li(5), one Li(8), one Li(9), one Cr(3), and one Cr(5) atom to form OLi4Cr2 octahedra that share corners with three equivalent O(1)Li4Cr2 pentagonal pyramids, edges with two equivalent O(7)Li4Cr2 octahedra, edges with two equivalent O(3)Li5Cr octahedra, and  an edgeedge with one O(10)Li5Cr pentagonal pyramid. In the thirteenth O site, O(13) is bonded in a 6-coordinate geometry to one Li(12), one Li(6), one Li(9), one Cr(1), one Cr(2), and one Cr(3) atom. In the fourteenth O site, O(14) is bonded in a 7-coordinate geometry to one Li(1), one Li(10), one Li(11), one Li(7), one Li(8), one Cr(4), and one Cr(5) atom. In the fifteenth O site, O(15) is bonded in a 6-coordinate geometry to one Li(1), one Li(10), one Li(12), one Li(4), one Li(9), and one Cr(5) atom. In the sixteenth O site, O(16) is bonded in a 7-coordinate geometry to one Li(1), one Li(11), one Li(2), one Li(3), one Li(7), one Cr(1), and one Cr(2) atom.