Li7CrO6 is Aluminum carbonitride-like structured and crystallizes in the monoclinic Cc space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(5)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with two equivalent Li(7)O4 tetrahedra, corners with three equivalent Li(5)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra,  an edgeedge with one Li(4)O4 tetrahedra, and  an edgeedge with one Cr(1)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(5)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. In the fourth Li site, Li(4) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. In the fifth Li site, Li(5) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with two equivalent Li(7)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra,  an edgeedge with one Li(4)O4 tetrahedra, and  an edgeedge with one Cr(1)O4 tetrahedra. In the sixth Li site, Li(6) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(5)O4 tetrahedra, corners with three equivalent Li(7)O4 tetrahedra, corners with three equivalent Cr(1)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra, and  an edgeedge with one Li(4)O4 tetrahedra. In the seventh Li site, Li(7) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(5)O4 tetrahedra, corners with three equivalent Li(6)O4 tetrahedra, corners with three equivalent Cr(1)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra, and  an edgeedge with one Li(4)O4 tetrahedra. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form CrO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra, corners with three equivalent Li(6)O4 tetrahedra, corners with three equivalent Li(7)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Li(5)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Li(6), one Li(7), and one Cr(1) atom to form distorted corner-sharing OLi4Cr trigonal bipyramids. In the second O site, O(2) is bonded to one Li(3), one Li(5), one Li(6), one Li(7), and one Cr(1) atom to form corner-sharing OLi4Cr trigonal bipyramids. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(4), one Li(6), one Li(7), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(4), one Li(5), and one Li(6) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(4), one Li(5), and one Li(7) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(4), one Li(5), and one Cr(1) atom.
Li7CrO6 is Aluminum carbonitride-like structured and crystallizes in the monoclinic Cc space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(5)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. The Li(1)-O(1) bond length is 2.31 Å. The Li(1)-O(4) bond length is 1.89 Å. The Li(1)-O(5) bond length is 1.88 Å. The Li(1)-O(6) bond length is 2.17 Å. In the second Li site, Li(2) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with two equivalent Li(7)O4 tetrahedra, corners with three equivalent Li(5)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra,  an edgeedge with one Li(4)O4 tetrahedra, and  an edgeedge with one Cr(1)O4 tetrahedra. The Li(2)-O(1) bond length is 2.06 Å. The Li(2)-O(4) bond length is 1.91 Å. The Li(2)-O(5) bond length is 1.92 Å. The Li(2)-O(6) bond length is 2.11 Å. In the third Li site, Li(3) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra, corners with two equivalent Li(5)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(4)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. The Li(3)-O(2) bond length is 2.04 Å. The Li(3)-O(4) bond length is 1.95 Å. The Li(3)-O(5) bond length is 1.94 Å. The Li(3)-O(6) bond length is 2.09 Å. In the fourth Li site, Li(4) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(5)O4 tetrahedra, corners with two equivalent Cr(1)O4 tetrahedra, corners with three equivalent Li(1)O4 tetrahedra, corners with three equivalent Li(3)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra,  an edgeedge with one Li(5)O4 tetrahedra,  an edgeedge with one Li(6)O4 tetrahedra, and  an edgeedge with one Li(7)O4 tetrahedra. The Li(4)-O(3) bond length is 2.02 Å. The Li(4)-O(4) bond length is 1.93 Å. The Li(4)-O(5) bond length is 1.96 Å. The Li(4)-O(6) bond length is 2.07 Å. In the fifth Li site, Li(5) is bonded to one O(2), one O(4), one O(5), and one O(6) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Li(6)O4 tetrahedra, corners with two equivalent Li(7)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra,  an edgeedge with one Li(4)O4 tetrahedra, and  an edgeedge with one Cr(1)O4 tetrahedra. The Li(5)-O(2) bond length is 2.06 Å. The Li(5)-O(4) bond length is 1.93 Å. The Li(5)-O(5) bond length is 1.91 Å. The Li(5)-O(6) bond length is 2.15 Å. In the sixth Li site, Li(6) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(5)O4 tetrahedra, corners with three equivalent Li(7)O4 tetrahedra, corners with three equivalent Cr(1)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra, and  an edgeedge with one Li(4)O4 tetrahedra. The Li(6)-O(1) bond length is 2.09 Å. The Li(6)-O(2) bond length is 2.00 Å. The Li(6)-O(3) bond length is 2.02 Å. The Li(6)-O(4) bond length is 1.95 Å. In the seventh Li site, Li(7) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(5)O4 tetrahedra, corners with three equivalent Li(6)O4 tetrahedra, corners with three equivalent Cr(1)O4 tetrahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra, and  an edgeedge with one Li(4)O4 tetrahedra. The Li(7)-O(1) bond length is 2.04 Å. The Li(7)-O(2) bond length is 2.09 Å. The Li(7)-O(3) bond length is 2.01 Å. The Li(7)-O(5) bond length is 1.95 Å. Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form CrO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra, corners with three equivalent Li(6)O4 tetrahedra, corners with three equivalent Li(7)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Li(5)O4 tetrahedra. The Cr(1)-O(1) bond length is 1.73 Å. The Cr(1)-O(2) bond length is 1.76 Å. The Cr(1)-O(3) bond length is 1.70 Å. The Cr(1)-O(6) bond length is 1.76 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Li(6), one Li(7), and one Cr(1) atom to form distorted corner-sharing OLi4Cr trigonal bipyramids. In the second O site, O(2) is bonded to one Li(3), one Li(5), one Li(6), one Li(7), and one Cr(1) atom to form corner-sharing OLi4Cr trigonal bipyramids. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(4), one Li(6), one Li(7), and one Cr(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(4), one Li(5), and one Li(6) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(4), one Li(5), and one Li(7) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Li(1), one Li(2), one Li(3), one Li(4), one Li(5), and one Cr(1) atom.