Sr4Mn2Cu3(SO)4 crystallizes in the orthorhombic Ibam space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent S(1), one O(2), one O(3), and two equivalent O(1) atoms. Mn(1) is bonded in a rectangular see-saw-like geometry to two equivalent S(1), one O(2), one O(3), and two equivalent O(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent S(1) atoms to form a mixture of distorted edge and corner-sharing CuS4 tetrahedra. In the second Cu site, Cu(2) is bonded to four equivalent S(1) atoms to form a mixture of distorted edge and corner-sharing CuS4 tetrahedra. S(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1), one Mn(1), one Cu(2), and two equivalent Cu(1) atoms. There are three inequivalent O sites. In the first O site, O(3) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form a mixture of edge, corner, and face-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the second O site, O(1) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form a mixture of edge, corner, and face-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the third O site, O(2) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form a mixture of edge, corner, and face-sharing OSr4Mn2 octahedra. The corner-sharing octahedra are not tilted.
Sr4Mn2Cu3(SO)4 crystallizes in the orthorhombic Ibam space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent S(1), one O(2), one O(3), and two equivalent O(1) atoms. There are a spread of Sr(1)-S(1) bond distances ranging from 3.11-3.14 Å. The Sr(1)-O(2) bond length is 2.64 Å. The Sr(1)-O(3) bond length is 2.68 Å. Both Sr(1)-O(1) bond lengths are 2.67 Å. Mn(1) is bonded in a rectangular see-saw-like geometry to two equivalent S(1), one O(2), one O(3), and two equivalent O(1) atoms. Both Mn(1)-S(1) bond lengths are 2.97 Å. The Mn(1)-O(2) bond length is 2.05 Å. The Mn(1)-O(3) bond length is 2.01 Å. There is one shorter (2.01 Å) and one longer (2.03 Å) Mn(1)-O(1) bond length. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent S(1) atoms to form a mixture of distorted edge and corner-sharing CuS4 tetrahedra. There are two shorter (2.41 Å) and two longer (2.42 Å) Cu(1)-S(1) bond lengths. In the second Cu site, Cu(2) is bonded to four equivalent S(1) atoms to form a mixture of distorted edge and corner-sharing CuS4 tetrahedra. All Cu(2)-S(1) bond lengths are 2.42 Å. S(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1), one Mn(1), one Cu(2), and two equivalent Cu(1) atoms. There are three inequivalent O sites. In the first O site, O(3) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form a mixture of edge, corner, and face-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the second O site, O(1) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form a mixture of edge, corner, and face-sharing OSr4Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the third O site, O(2) is bonded to four equivalent Sr(1) and two equivalent Mn(1) atoms to form a mixture of edge, corner, and face-sharing OSr4Mn2 octahedra. The corner-sharing octahedra are not tilted.