SmMnSe2O6Cl crystallizes in the triclinic P-1 space group. Sm(1) is bonded in a 9-coordinate geometry to one O(1), one O(6), two equivalent O(2), two equivalent O(3), two equivalent O(4), and one Cl(1) atom. Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(6), two equivalent O(5), and two equivalent Cl(1) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(3), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Sm(1), one Mn(1), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sm(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sm(1) and one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one Se(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to two equivalent Mn(1) and one Se(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sm(1), one Mn(1), and one Se(1) atom. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to one Sm(1) and two equivalent Mn(1) atoms.
SmMnSe2O6Cl crystallizes in the triclinic P-1 space group. Sm(1) is bonded in a 9-coordinate geometry to one O(1), one O(6), two equivalent O(2), two equivalent O(3), two equivalent O(4), and one Cl(1) atom. The Sm(1)-O(1) bond length is 2.55 Å. The Sm(1)-O(6) bond length is 2.46 Å. There is one shorter (2.54 Å) and one longer (2.64 Å) Sm(1)-O(2) bond length. There is one shorter (2.37 Å) and one longer (2.69 Å) Sm(1)-O(3) bond length. There is one shorter (2.39 Å) and one longer (2.46 Å) Sm(1)-O(4) bond length. The Sm(1)-Cl(1) bond length is 2.99 Å. Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(6), two equivalent O(5), and two equivalent Cl(1) atoms. The Mn(1)-O(1) bond length is 2.19 Å. The Mn(1)-O(6) bond length is 2.19 Å. There is one shorter (2.19 Å) and one longer (2.33 Å) Mn(1)-O(5) bond length. There is one shorter (2.66 Å) and one longer (2.68 Å) Mn(1)-Cl(1) bond length. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(6) atom. The Se(1)-O(1) bond length is 1.74 Å. The Se(1)-O(2) bond length is 1.73 Å. The Se(1)-O(6) bond length is 1.74 Å. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(3), one O(4), and one O(5) atom. The Se(2)-O(3) bond length is 1.73 Å. The Se(2)-O(4) bond length is 1.73 Å. The Se(2)-O(5) bond length is 1.73 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Sm(1), one Mn(1), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sm(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sm(1) and one Se(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one Se(2) atom. In the fifth O site, O(5) is bonded in a trigonal non-coplanar geometry to two equivalent Mn(1) and one Se(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Sm(1), one Mn(1), and one Se(1) atom. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to one Sm(1) and two equivalent Mn(1) atoms.