Mn2O3Cl crystallizes in the orthorhombic Pnma space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent Cl(1) atoms to form distorted MnCl2O4 octahedra that share edges with two equivalent Mn(1)Cl2O4 octahedra and edges with four equivalent Mn(2)ClO5 octahedra. In the second Mn site, Mn(2) is bonded to one O(1), four equivalent O(2), and one Cl(1) atom to form MnClO5 octahedra that share edges with two equivalent Mn(2)ClO5 octahedra and edges with four equivalent Mn(1)Cl2O4 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mn(2) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Mn(2) atoms. Cl(1) is bonded in a 3-coordinate geometry to one Mn(2) and two equivalent Mn(1) atoms.
Mn2O3Cl crystallizes in the orthorhombic Pnma space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent Cl(1) atoms to form distorted MnCl2O4 octahedra that share edges with two equivalent Mn(1)Cl2O4 octahedra and edges with four equivalent Mn(2)ClO5 octahedra. Both Mn(1)-O(1) bond lengths are 1.99 Å. Both Mn(1)-O(2) bond lengths are 1.98 Å. Both Mn(1)-Cl(1) bond lengths are 2.61 Å. In the second Mn site, Mn(2) is bonded to one O(1), four equivalent O(2), and one Cl(1) atom to form MnClO5 octahedra that share edges with two equivalent Mn(2)ClO5 octahedra and edges with four equivalent Mn(1)Cl2O4 octahedra. The Mn(2)-O(1) bond length is 1.94 Å. There are two shorter (1.95 Å) and two longer (1.98 Å) Mn(2)-O(2) bond lengths. The Mn(2)-Cl(1) bond length is 2.37 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mn(2) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Mn(2) atoms. Cl(1) is bonded in a 3-coordinate geometry to one Mn(2) and two equivalent Mn(1) atoms.