Cd2SnO4 crystallizes in the orthorhombic Pbam space group. Cd(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted CdO6 pentagonal pyramids that share corners with four equivalent Sn(1)O6 octahedra, corners with four equivalent Cd(1)O6 pentagonal pyramids, edges with two equivalent Sn(1)O6 octahedra, and edges with five equivalent Cd(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 52-69°. Sn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SnO6 octahedra that share corners with eight equivalent Cd(1)O6 pentagonal pyramids, edges with two equivalent Sn(1)O6 octahedra, and edges with four equivalent Cd(1)O6 pentagonal pyramids. There are two inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Cd(1) and two equivalent Sn(1) atoms to form distorted OCd2Sn2 trigonal pyramids that share corners with eight equivalent O(1)Cd4Sn trigonal bipyramids, corners with four equivalent O(2)Cd2Sn2 trigonal pyramids, edges with two equivalent O(1)Cd4Sn trigonal bipyramids, and edges with two equivalent O(2)Cd2Sn2 trigonal pyramids. In the second O site, O(1) is bonded to four equivalent Cd(1) and one Sn(1) atom to form distorted OCd4Sn trigonal bipyramids that share corners with five equivalent O(1)Cd4Sn trigonal bipyramids, corners with eight equivalent O(2)Cd2Sn2 trigonal pyramids, edges with four equivalent O(1)Cd4Sn trigonal bipyramids, and edges with two equivalent O(2)Cd2Sn2 trigonal pyramids.
Cd2SnO4 crystallizes in the orthorhombic Pbam space group. Cd(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted CdO6 pentagonal pyramids that share corners with four equivalent Sn(1)O6 octahedra, corners with four equivalent Cd(1)O6 pentagonal pyramids, edges with two equivalent Sn(1)O6 octahedra, and edges with five equivalent Cd(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 52-69°. There is one shorter (2.28 Å) and one longer (2.45 Å) Cd(1)-O(2) bond length. There are two shorter (2.34 Å) and two longer (2.35 Å) Cd(1)-O(1) bond lengths. Sn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SnO6 octahedra that share corners with eight equivalent Cd(1)O6 pentagonal pyramids, edges with two equivalent Sn(1)O6 octahedra, and edges with four equivalent Cd(1)O6 pentagonal pyramids. Both Sn(1)-O(1) bond lengths are 2.06 Å. All Sn(1)-O(2) bond lengths are 2.11 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Cd(1) and two equivalent Sn(1) atoms to form distorted OCd2Sn2 trigonal pyramids that share corners with eight equivalent O(1)Cd4Sn trigonal bipyramids, corners with four equivalent O(2)Cd2Sn2 trigonal pyramids, edges with two equivalent O(1)Cd4Sn trigonal bipyramids, and edges with two equivalent O(2)Cd2Sn2 trigonal pyramids. In the second O site, O(1) is bonded to four equivalent Cd(1) and one Sn(1) atom to form distorted OCd4Sn trigonal bipyramids that share corners with five equivalent O(1)Cd4Sn trigonal bipyramids, corners with eight equivalent O(2)Cd2Sn2 trigonal pyramids, edges with four equivalent O(1)Cd4Sn trigonal bipyramids, and edges with two equivalent O(2)Cd2Sn2 trigonal pyramids.