Li3Co2(SiO4)2 is Clathrate-derived structured and crystallizes in the triclinic P1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(2)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Si(2)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(1)O4 tetrahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form CoO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and corners with two equivalent Co(2)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(4), one O(6), one O(7), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Co(2), and one Si(1) atom to form distorted corner-sharing OLi2CoSi tetrahedra. In the second O site, O(2) is bonded to one Li(2), one Li(3), one Co(1), and one Si(1) atom to form corner-sharing OLi2CoSi tetrahedra. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Si(1) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Co(1), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi trigonal pyramids. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(3), one Co(2), and one Si(1) atom. In the sixth O site, O(6) is bonded to one Li(2), one Li(3), one Co(2), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(2), and one Si(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Li(3), one Co(1), and one Si(2) atom.
Li3Co2(SiO4)2 is Clathrate-derived structured and crystallizes in the triclinic P1 space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(2)O4 tetrahedra. The Li(1)-O(1) bond length is 2.06 Å. The Li(1)-O(3) bond length is 1.97 Å. The Li(1)-O(4) bond length is 2.07 Å. The Li(1)-O(7) bond length is 1.98 Å. In the second Li site, Li(2) is bonded to one O(1), one O(2), one O(4), and one O(6) atom to form distorted LiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, and  an edgeedge with one Si(2)O4 tetrahedra. The Li(2)-O(1) bond length is 2.01 Å. The Li(2)-O(2) bond length is 2.06 Å. The Li(2)-O(4) bond length is 2.19 Å. The Li(2)-O(6) bond length is 2.03 Å. In the third Li site, Li(3) is bonded to one O(2), one O(5), one O(6), and one O(8) atom to form LiO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Co(1)O4 tetrahedra. The Li(3)-O(2) bond length is 2.07 Å. The Li(3)-O(5) bond length is 1.89 Å. The Li(3)-O(6) bond length is 1.96 Å. The Li(3)-O(8) bond length is 2.03 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form CoO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The Co(1)-O(2) bond length is 1.91 Å. The Co(1)-O(3) bond length is 1.84 Å. The Co(1)-O(4) bond length is 1.90 Å. The Co(1)-O(8) bond length is 1.86 Å. In the second Co site, Co(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, and  an edgeedge with one Li(1)O4 tetrahedra. The Co(2)-O(1) bond length is 2.03 Å. The Co(2)-O(5) bond length is 1.93 Å. The Co(2)-O(6) bond length is 2.00 Å. The Co(2)-O(7) bond length is 1.96 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and corners with two equivalent Co(2)O4 tetrahedra. The Si(1)-O(1) bond length is 1.65 Å. The Si(1)-O(2) bond length is 1.69 Å. The Si(1)-O(3) bond length is 1.66 Å. The Si(1)-O(5) bond length is 1.62 Å. In the second Si site, Si(2) is bonded to one O(4), one O(6), one O(7), and one O(8) atom to form SiO4 tetrahedra that share corners with two equivalent Li(1)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and  an edgeedge with one Li(2)O4 tetrahedra. The Si(2)-O(4) bond length is 1.69 Å. The Si(2)-O(6) bond length is 1.65 Å. The Si(2)-O(7) bond length is 1.62 Å. The Si(2)-O(8) bond length is 1.65 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(2), one Co(2), and one Si(1) atom to form distorted corner-sharing OLi2CoSi tetrahedra. In the second O site, O(2) is bonded to one Li(2), one Li(3), one Co(1), and one Si(1) atom to form corner-sharing OLi2CoSi tetrahedra. In the third O site, O(3) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one Si(1) atom. In the fourth O site, O(4) is bonded to one Li(1), one Li(2), one Co(1), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi trigonal pyramids. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Li(3), one Co(2), and one Si(1) atom. In the sixth O site, O(6) is bonded to one Li(2), one Li(3), one Co(2), and one Si(2) atom to form a mixture of corner and edge-sharing OLi2CoSi tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(2), and one Si(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Li(3), one Co(1), and one Si(2) atom.