Li3Co2Si3O10 is Chalcostibite-derived structured and crystallizes in the monoclinic Cc space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(3), and one O(7) atom. In the second Li site, Li(2) is bonded to one O(2), one O(5), one O(6), and one O(9) atom to form LiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Si(3)O4 tetrahedra, corners with three equivalent Co(1)O5 trigonal bipyramids, and  an edgeedge with one Co(2)O5 trigonal bipyramid. In the third Li site, Li(3) is bonded in a distorted trigonal planar geometry to one O(1), one O(7), and one O(8) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(4), one O(5), one O(6), and one O(9) atom to form CoO5 trigonal bipyramids that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra, corners with three equivalent Si(3)O4 tetrahedra, and  an edgeedge with one Co(2)O5 trigonal bipyramid. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(4), one O(5), and one O(8) atom to form CoO5 trigonal bipyramids that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Co(1)O5 trigonal bipyramid. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(10), one O(3), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Co(1)O5 trigonal bipyramid, and  a cornercorner with one Co(2)O5 trigonal bipyramid. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Co(1)O5 trigonal bipyramid, and corners with three equivalent Co(2)O5 trigonal bipyramids. In the third Si site, Si(3) is bonded to one O(5), one O(6), one O(7), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  a cornercorner with one Co(2)O5 trigonal bipyramid, and corners with three equivalent Co(1)O5 trigonal bipyramids. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(3), one Co(2), and one Si(1) atom to form distorted OLi2CoSi tetrahedra that share  a cornercorner with one O(5)LiCo2Si tetrahedra,  a cornercorner with one O(7)Li2Si2 trigonal pyramid, and  an edgeedge with one O(7)Li2Si2 trigonal pyramid. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(2), and one Si(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Si(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Si(2) atom. In the fifth O site, O(5) is bonded to one Li(2), one Co(1), one Co(2), and one Si(3) atom to form distorted OLiCo2Si tetrahedra that share  a cornercorner with one O(1)Li2CoSi tetrahedra and  a cornercorner with one O(7)Li2Si2 trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(1), and one Si(3) atom. In the seventh O site, O(7) is bonded to one Li(1), one Li(3), one Si(1), and one Si(3) atom to form distorted OLi2Si2 trigonal pyramids that share  a cornercorner with one O(1)Li2CoSi tetrahedra,  a cornercorner with one O(5)LiCo2Si tetrahedra, and  an edgeedge with one O(1)Li2CoSi tetrahedra. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Li(3), one Co(2), and one Si(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(1), and one Si(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(1), and one Si(1) atom.
Li3Co2Si3O10 is Chalcostibite-derived structured and crystallizes in the monoclinic Cc space group. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(3), and one O(7) atom. The Li(1)-O(1) bond length is 2.07 Å. The Li(1)-O(10) bond length is 1.97 Å. The Li(1)-O(3) bond length is 2.35 Å. The Li(1)-O(7) bond length is 2.41 Å. In the second Li site, Li(2) is bonded to one O(2), one O(5), one O(6), and one O(9) atom to form LiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Si(3)O4 tetrahedra, corners with three equivalent Co(1)O5 trigonal bipyramids, and  an edgeedge with one Co(2)O5 trigonal bipyramid. The Li(2)-O(2) bond length is 1.95 Å. The Li(2)-O(5) bond length is 2.18 Å. The Li(2)-O(6) bond length is 2.02 Å. The Li(2)-O(9) bond length is 1.90 Å. In the third Li site, Li(3) is bonded in a distorted trigonal planar geometry to one O(1), one O(7), and one O(8) atom. The Li(3)-O(1) bond length is 1.97 Å. The Li(3)-O(7) bond length is 2.22 Å. The Li(3)-O(8) bond length is 2.02 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(10), one O(4), one O(5), one O(6), and one O(9) atom to form CoO5 trigonal bipyramids that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra, corners with three equivalent Si(3)O4 tetrahedra, and  an edgeedge with one Co(2)O5 trigonal bipyramid. The Co(1)-O(10) bond length is 2.10 Å. The Co(1)-O(4) bond length is 2.21 Å. The Co(1)-O(5) bond length is 2.06 Å. The Co(1)-O(6) bond length is 2.02 Å. The Co(1)-O(9) bond length is 2.03 Å. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(4), one O(5), and one O(8) atom to form CoO5 trigonal bipyramids that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, corners with three equivalent Si(2)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Co(1)O5 trigonal bipyramid. The Co(2)-O(1) bond length is 2.12 Å. The Co(2)-O(2) bond length is 1.85 Å. The Co(2)-O(4) bond length is 1.89 Å. The Co(2)-O(5) bond length is 2.11 Å. The Co(2)-O(8) bond length is 1.87 Å. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(10), one O(3), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Co(1)O5 trigonal bipyramid, and  a cornercorner with one Co(2)O5 trigonal bipyramid. The Si(1)-O(1) bond length is 1.63 Å. The Si(1)-O(10) bond length is 1.60 Å. The Si(1)-O(3) bond length is 1.67 Å. The Si(1)-O(7) bond length is 1.68 Å. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Co(1)O5 trigonal bipyramid, and corners with three equivalent Co(2)O5 trigonal bipyramids. The Si(2)-O(2) bond length is 1.63 Å. The Si(2)-O(3) bond length is 1.67 Å. The Si(2)-O(4) bond length is 1.63 Å. The Si(2)-O(8) bond length is 1.64 Å. In the third Si site, Si(3) is bonded to one O(5), one O(6), one O(7), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra, corners with three equivalent Li(2)O4 tetrahedra,  a cornercorner with one Co(2)O5 trigonal bipyramid, and corners with three equivalent Co(1)O5 trigonal bipyramids. The Si(3)-O(5) bond length is 1.66 Å. The Si(3)-O(6) bond length is 1.63 Å. The Si(3)-O(7) bond length is 1.71 Å. The Si(3)-O(9) bond length is 1.61 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Li(3), one Co(2), and one Si(1) atom to form distorted OLi2CoSi tetrahedra that share  a cornercorner with one O(5)LiCo2Si tetrahedra,  a cornercorner with one O(7)Li2Si2 trigonal pyramid, and  an edgeedge with one O(7)Li2Si2 trigonal pyramid. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(2), and one Si(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one Si(1), and one Si(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Si(2) atom. In the fifth O site, O(5) is bonded to one Li(2), one Co(1), one Co(2), and one Si(3) atom to form distorted OLiCo2Si tetrahedra that share  a cornercorner with one O(1)Li2CoSi tetrahedra and  a cornercorner with one O(7)Li2Si2 trigonal pyramid. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(1), and one Si(3) atom. In the seventh O site, O(7) is bonded to one Li(1), one Li(3), one Si(1), and one Si(3) atom to form distorted OLi2Si2 trigonal pyramids that share  a cornercorner with one O(1)Li2CoSi tetrahedra,  a cornercorner with one O(5)LiCo2Si tetrahedra, and  an edgeedge with one O(1)Li2CoSi tetrahedra. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Li(3), one Co(2), and one Si(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Li(2), one Co(1), and one Si(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Li(1), one Co(1), and one Si(1) atom.