MnSnO3 crystallizes in the triclinic P-1 space group. Mn(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO5 trigonal bipyramids that share corners with four equivalent Sn(1)O5 trigonal bipyramids, edges with two equivalent Mn(1)O5 trigonal bipyramids, and edges with two equivalent Sn(1)O5 trigonal bipyramids. Sn(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form distorted SnO5 trigonal bipyramids that share corners with four equivalent Mn(1)O5 trigonal bipyramids, edges with two equivalent Mn(1)O5 trigonal bipyramids, and edges with two equivalent Sn(1)O5 trigonal bipyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Mn(1) and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded to two equivalent Mn(1) and two equivalent Sn(1) atoms to form edge-sharing OMn2Sn2 trigonal pyramids. In the third O site, O(3) is bonded in a distorted T-shaped geometry to two equivalent Mn(1) and one Sn(1) atom.
MnSnO3 crystallizes in the triclinic P-1 space group. Mn(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO5 trigonal bipyramids that share corners with four equivalent Sn(1)O5 trigonal bipyramids, edges with two equivalent Mn(1)O5 trigonal bipyramids, and edges with two equivalent Sn(1)O5 trigonal bipyramids. The Mn(1)-O(1) bond length is 2.12 Å. There is one shorter (2.22 Å) and one longer (2.29 Å) Mn(1)-O(2) bond length. There is one shorter (2.06 Å) and one longer (2.14 Å) Mn(1)-O(3) bond length. Sn(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form distorted SnO5 trigonal bipyramids that share corners with four equivalent Mn(1)O5 trigonal bipyramids, edges with two equivalent Mn(1)O5 trigonal bipyramids, and edges with two equivalent Sn(1)O5 trigonal bipyramids. The Sn(1)-O(3) bond length is 1.96 Å. Both Sn(1)-O(1) bond lengths are 2.06 Å. There is one shorter (2.02 Å) and one longer (2.28 Å) Sn(1)-O(2) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Mn(1) and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded to two equivalent Mn(1) and two equivalent Sn(1) atoms to form edge-sharing OMn2Sn2 trigonal pyramids. In the third O site, O(3) is bonded in a distorted T-shaped geometry to two equivalent Mn(1) and one Sn(1) atom.