Cr3Sn3(SbO8)2 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form CrO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with two equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the second Cr site, Cr(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form CrO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with two equivalent Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-50°. In the third Cr site, Cr(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form CrO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-52°. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. In the second Sn site, Sn(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the third Sn site, Sn(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form distorted SnO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Cr(3)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form SbO6 octahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Sn(3)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. In the second Sb site, Sb(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form SbO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra, and  an edgeedge with one Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Cr(2), one Sn(3), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Sn(1), one Sn(2), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Cr(1), one Sn(1), and one Sn(2) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Cr(1), one Sn(1), and one Sn(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Cr(2), one Cr(3), and one Sn(3) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Cr(3), one Sn(3), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one Sn(1), and one Sb(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one Sn(2), and one Sb(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sn(1), one Sn(2), and one Sb(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Cr(2), one Cr(3), and one Sb(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Sn(3), and one Sb(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Cr(3), one Sn(3), and one Sb(2) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Cr(3), and one Sn(3) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Cr(1), one Sn(1), and one Sb(2) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Cr(3), and one Sb(2) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Cr(1), one Sn(2), and one Sb(2) atom.
Cr3Sn3(SbO8)2 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(14), one O(16), one O(3), one O(4), one O(7), and one O(8) atom to form CrO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with two equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. The Cr(1)-O(14) bond length is 2.10 Å. The Cr(1)-O(16) bond length is 2.10 Å. The Cr(1)-O(3) bond length is 2.02 Å. The Cr(1)-O(4) bond length is 2.02 Å. The Cr(1)-O(7) bond length is 2.03 Å. The Cr(1)-O(8) bond length is 2.03 Å. In the second Cr site, Cr(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(15), and one O(5) atom to form CrO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with two equivalent Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-50°. The Cr(2)-O(1) bond length is 2.12 Å. The Cr(2)-O(10) bond length is 2.10 Å. The Cr(2)-O(11) bond length is 1.94 Å. The Cr(2)-O(13) bond length is 1.94 Å. The Cr(2)-O(15) bond length is 1.96 Å. The Cr(2)-O(5) bond length is 1.89 Å. In the third Cr site, Cr(3) is bonded to one O(10), one O(12), one O(13), one O(15), one O(5), and one O(6) atom to form CrO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-52°. The Cr(3)-O(10) bond length is 2.08 Å. The Cr(3)-O(12) bond length is 2.03 Å. The Cr(3)-O(13) bond length is 2.01 Å. The Cr(3)-O(15) bond length is 2.07 Å. The Cr(3)-O(5) bond length is 2.01 Å. The Cr(3)-O(6) bond length is 2.08 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(14), one O(2), one O(3), one O(4), one O(7), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. The Sn(1)-O(14) bond length is 2.11 Å. The Sn(1)-O(2) bond length is 2.11 Å. The Sn(1)-O(3) bond length is 2.07 Å. The Sn(1)-O(4) bond length is 2.03 Å. The Sn(1)-O(7) bond length is 2.13 Å. The Sn(1)-O(9) bond length is 2.13 Å. In the second Sn site, Sn(2) is bonded to one O(16), one O(2), one O(3), one O(4), one O(8), and one O(9) atom to form SnO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, edges with two equivalent Cr(1)O6 octahedra, and edges with two equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Sn(2)-O(16) bond length is 2.12 Å. The Sn(2)-O(2) bond length is 2.11 Å. The Sn(2)-O(3) bond length is 2.06 Å. The Sn(2)-O(4) bond length is 2.03 Å. The Sn(2)-O(8) bond length is 2.12 Å. The Sn(2)-O(9) bond length is 2.13 Å. In the third Sn site, Sn(3) is bonded to one O(1), one O(11), one O(12), one O(13), one O(5), and one O(6) atom to form distorted SnO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Cr(3)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. The Sn(3)-O(1) bond length is 2.08 Å. The Sn(3)-O(11) bond length is 2.17 Å. The Sn(3)-O(12) bond length is 2.13 Å. The Sn(3)-O(13) bond length is 2.07 Å. The Sn(3)-O(5) bond length is 2.06 Å. The Sn(3)-O(6) bond length is 2.08 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(1), one O(10), one O(2), one O(6), one O(7), and one O(8) atom to form SbO6 octahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent Cr(3)O6 octahedra, corners with two equivalent Sn(3)O6 octahedra,  an edgeedge with one Cr(1)O6 octahedra,  an edgeedge with one Sn(1)O6 octahedra, and  an edgeedge with one Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. The Sb(1)-O(1) bond length is 2.01 Å. The Sb(1)-O(10) bond length is 1.99 Å. The Sb(1)-O(2) bond length is 2.08 Å. The Sb(1)-O(6) bond length is 2.01 Å. The Sb(1)-O(7) bond length is 2.05 Å. The Sb(1)-O(8) bond length is 2.05 Å. In the second Sb site, Sb(2) is bonded to one O(11), one O(12), one O(14), one O(15), one O(16), and one O(9) atom to form SbO6 octahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Sn(1)O6 octahedra, corners with two equivalent Sn(2)O6 octahedra,  an edgeedge with one Cr(2)O6 octahedra,  an edgeedge with one Cr(3)O6 octahedra, and  an edgeedge with one Sn(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. The Sb(2)-O(11) bond length is 2.07 Å. The Sb(2)-O(12) bond length is 2.04 Å. The Sb(2)-O(14) bond length is 2.00 Å. The Sb(2)-O(15) bond length is 2.04 Å. The Sb(2)-O(16) bond length is 2.00 Å. The Sb(2)-O(9) bond length is 2.02 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Cr(2), one Sn(3), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Sn(1), one Sn(2), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Cr(1), one Sn(1), and one Sn(2) atom. In the fourth O site, O(4) is bonded in a trigonal non-coplanar geometry to one Cr(1), one Sn(1), and one Sn(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to one Cr(2), one Cr(3), and one Sn(3) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Cr(3), one Sn(3), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one Sn(1), and one Sb(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Cr(1), one Sn(2), and one Sb(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sn(1), one Sn(2), and one Sb(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Cr(2), one Cr(3), and one Sb(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Sn(3), and one Sb(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Cr(3), one Sn(3), and one Sb(2) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Cr(3), and one Sn(3) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Cr(1), one Sn(1), and one Sb(2) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Cr(2), one Cr(3), and one Sb(2) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal planar geometry to one Cr(1), one Sn(2), and one Sb(2) atom.