Li7Si2(NiO4)3 is Caswellsilverite-derived structured and crystallizes in the monoclinic C2/c space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with six equivalent Si(1)O6 octahedra. The corner-sharing octahedral tilt angles are 14°. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, corners with two equivalent Si(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Si(1)O6 octahedra, edges with three equivalent Li(3)O6 octahedra, and edges with three equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-14°. In the third Li site, Li(3) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, corners with two equivalent Si(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Si(1)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-14°. In the fourth Li site, Li(4) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, corners with two equivalent Si(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Si(1)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-14°. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Ni(2)O6 octahedra, and edges with three equivalent Ni(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-11°. In the second Ni site, Ni(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Ni(1)O6 octahedra, and edges with three equivalent Ni(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the third Ni site, Ni(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Ni(1)O6 octahedra, and edges with three equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-7°. Si(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form SiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Li(1)O6 octahedra, and edges with three equivalent Si(1)O6 octahedra. The corner-sharing octahedral tilt angles are 12°. There are six inequivalent O sites. In the first O site, O(5) is bonded to one Li(1), one Li(2), one Li(3), one Li(4), and two equivalent Si(1) atoms to form OLi4Si2 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra, edges with four equivalent O(2)Li4Si2 octahedra, and edges with four equivalent O(6)Li4Si2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the second O site, O(6) is bonded to one Li(1), one Li(2), one Li(3), one Li(4), and two equivalent Si(1) atoms to form OLi4Si2 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(2)Li4Si2 octahedra, and edges with four equivalent O(5)Li4Si2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the third O site, O(1) is bonded to one Li(2), one Li(3), one Li(4), one Ni(1), one Ni(2), and one Ni(3) atom to form OLi3Ni3 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(3)Li3Ni3 octahedra, and edges with four equivalent O(4)Li3Ni3 octahedra. The corner-sharing octahedral tilt angles range from 2-7°. In the fourth O site, O(2) is bonded to one Li(1), one Li(2), one Li(3), one Li(4), and two equivalent Si(1) atoms to form OLi4Si2 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra, edges with four equivalent O(5)Li4Si2 octahedra, and edges with four equivalent O(6)Li4Si2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the fifth O site, O(3) is bonded to one Li(2), one Li(3), one Li(4), one Ni(1), one Ni(2), and one Ni(3) atom to form OLi3Ni3 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(1)Li3Ni3 octahedra, and edges with four equivalent O(4)Li3Ni3 octahedra. The corner-sharing octahedral tilt angles range from 3-8°. In the sixth O site, O(4) is bonded to one Li(2), one Li(3), one Li(4), one Ni(1), one Ni(2), and one Ni(3) atom to form OLi3Ni3 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(1)Li3Ni3 octahedra, and edges with four equivalent O(3)Li3Ni3 octahedra. The corner-sharing octahedral tilt angles range from 3-9°.
Li7Si2(NiO4)3 is Caswellsilverite-derived structured and crystallizes in the monoclinic C2/c space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form LiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, and edges with six equivalent Si(1)O6 octahedra. The corner-sharing octahedral tilt angles are 14°. Both Li(1)-O(2) bond lengths are 2.07 Å. Both Li(1)-O(5) bond lengths are 2.07 Å. Both Li(1)-O(6) bond lengths are 2.08 Å. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, corners with two equivalent Si(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Si(1)O6 octahedra, edges with three equivalent Li(3)O6 octahedra, and edges with three equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-14°. The Li(2)-O(1) bond length is 1.99 Å. The Li(2)-O(2) bond length is 2.01 Å. The Li(2)-O(3) bond length is 2.23 Å. The Li(2)-O(4) bond length is 2.06 Å. The Li(2)-O(5) bond length is 2.17 Å. The Li(2)-O(6) bond length is 2.22 Å. In the third Li site, Li(3) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, corners with two equivalent Si(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Si(1)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Li(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-14°. The Li(3)-O(1) bond length is 2.14 Å. The Li(3)-O(2) bond length is 2.21 Å. The Li(3)-O(3) bond length is 2.20 Å. The Li(3)-O(4) bond length is 2.03 Å. The Li(3)-O(5) bond length is 2.02 Å. The Li(3)-O(6) bond length is 2.17 Å. In the fourth Li site, Li(4) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form LiO6 octahedra that share  a cornercorner with one Li(1)O6 octahedra,  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, corners with two equivalent Si(1)O6 octahedra,  an edgeedge with one Li(1)O6 octahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Si(1)O6 octahedra, edges with three equivalent Li(2)O6 octahedra, and edges with three equivalent Li(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-14°. The Li(4)-O(1) bond length is 2.04 Å. The Li(4)-O(2) bond length is 2.20 Å. The Li(4)-O(3) bond length is 2.05 Å. The Li(4)-O(4) bond length is 2.20 Å. The Li(4)-O(5) bond length is 2.17 Å. The Li(4)-O(6) bond length is 2.02 Å. There are three inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Ni(2)O6 octahedra, and edges with three equivalent Ni(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-11°. Both Ni(1)-O(1) bond lengths are 2.03 Å. Both Ni(1)-O(3) bond lengths are 2.05 Å. Both Ni(1)-O(4) bond lengths are 2.04 Å. In the second Ni site, Ni(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Ni(1)O6 octahedra, and edges with three equivalent Ni(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. Both Ni(2)-O(1) bond lengths are 2.02 Å. Both Ni(2)-O(3) bond lengths are 1.89 Å. Both Ni(2)-O(4) bond lengths are 1.99 Å. In the third Ni site, Ni(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Ni(1)O6 octahedra, and edges with three equivalent Ni(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 2-7°. Both Ni(3)-O(1) bond lengths are 1.89 Å. Both Ni(3)-O(3) bond lengths are 1.90 Å. Both Ni(3)-O(4) bond lengths are 1.88 Å. Si(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form SiO6 octahedra that share corners with two equivalent Li(2)O6 octahedra, corners with two equivalent Li(3)O6 octahedra, corners with two equivalent Li(4)O6 octahedra, edges with two equivalent Li(2)O6 octahedra, edges with two equivalent Li(3)O6 octahedra, edges with two equivalent Li(4)O6 octahedra, edges with three equivalent Li(1)O6 octahedra, and edges with three equivalent Si(1)O6 octahedra. The corner-sharing octahedral tilt angles are 12°. There is one shorter (1.84 Å) and one longer (1.85 Å) Si(1)-O(2) bond length. Both Si(1)-O(5) bond lengths are 1.83 Å. There is one shorter (1.83 Å) and one longer (1.84 Å) Si(1)-O(6) bond length. There are six inequivalent O sites. In the first O site, O(5) is bonded to one Li(1), one Li(2), one Li(3), one Li(4), and two equivalent Si(1) atoms to form OLi4Si2 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra, edges with four equivalent O(2)Li4Si2 octahedra, and edges with four equivalent O(6)Li4Si2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the second O site, O(6) is bonded to one Li(1), one Li(2), one Li(3), one Li(4), and two equivalent Si(1) atoms to form OLi4Si2 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(2)Li4Si2 octahedra, and edges with four equivalent O(5)Li4Si2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the third O site, O(1) is bonded to one Li(2), one Li(3), one Li(4), one Ni(1), one Ni(2), and one Ni(3) atom to form OLi3Ni3 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(3)Li3Ni3 octahedra, and edges with four equivalent O(4)Li3Ni3 octahedra. The corner-sharing octahedral tilt angles range from 2-7°. In the fourth O site, O(2) is bonded to one Li(1), one Li(2), one Li(3), one Li(4), and two equivalent Si(1) atoms to form OLi4Si2 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(1)Li3Ni3 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra, edges with four equivalent O(5)Li4Si2 octahedra, and edges with four equivalent O(6)Li4Si2 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the fifth O site, O(3) is bonded to one Li(2), one Li(3), one Li(4), one Ni(1), one Ni(2), and one Ni(3) atom to form OLi3Ni3 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(3)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(1)Li3Ni3 octahedra, and edges with four equivalent O(4)Li3Ni3 octahedra. The corner-sharing octahedral tilt angles range from 3-8°. In the sixth O site, O(4) is bonded to one Li(2), one Li(3), one Li(4), one Ni(1), one Ni(2), and one Ni(3) atom to form OLi3Ni3 octahedra that share  a cornercorner with one O(1)Li3Ni3 octahedra,  a cornercorner with one O(3)Li3Ni3 octahedra,  a cornercorner with one O(4)Li3Ni3 octahedra,  a cornercorner with one O(2)Li4Si2 octahedra,  a cornercorner with one O(5)Li4Si2 octahedra,  a cornercorner with one O(6)Li4Si2 octahedra,  an edgeedge with one O(4)Li3Ni3 octahedra,  an edgeedge with one O(2)Li4Si2 octahedra,  an edgeedge with one O(5)Li4Si2 octahedra,  an edgeedge with one O(6)Li4Si2 octahedra, edges with four equivalent O(1)Li3Ni3 octahedra, and edges with four equivalent O(3)Li3Ni3 octahedra. The corner-sharing octahedral tilt angles range from 3-9°.