MgS7(O9F4)2SO2 is Indium-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one sulfur dioxide molecule and one MgS7(O9F4)2 cluster. In the MgS7(O9F4)2 cluster, Mg(1) is bonded to one O(19), one O(20), one O(4), one F(1), and one F(3) atom to form distorted MgO3F2 trigonal bipyramids that share  a cornercorner with one S(1)O3F tetrahedra,  a cornercorner with one S(4)O3F tetrahedra,  a cornercorner with one S(7)O3F tetrahedra, and  a cornercorner with one S(8)O3F tetrahedra. There are seven inequivalent S sites. In the first S site, S(1) is bonded to one O(12), one O(14), one O(20), and one F(8) atom to form SO3F tetrahedra that share  a cornercorner with one S(2)O3F tetrahedra and  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. In the second S site, S(2) is bonded to one O(1), one O(12), one O(2), and one F(7) atom to form corner-sharing SO3F tetrahedra. In the third S site, S(3) is bonded to one O(18), one O(3), one O(9), and one F(6) atom to form corner-sharing SO3F tetrahedra. In the fourth S site, S(4) is bonded to one O(11), one O(17), one O(4), and one F(5) atom to form SO3F tetrahedra that share  a cornercorner with one S(5)O3F tetrahedra and  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. In the fifth S site, S(5) is bonded to one O(11), one O(16), one O(5), and one F(4) atom to form corner-sharing SO3F tetrahedra. In the sixth S site, S(7) is bonded to one O(10), one O(19), one O(7), and one F(2) atom to form SO3F tetrahedra that share  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. In the seventh S site, S(8) is bonded to one O(13), one O(8), one O(9), and one F(1) atom to form SO3F tetrahedra that share  a cornercorner with one S(3)O3F tetrahedra and  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one S(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one S(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one S(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mg(1) and one S(4) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one S(5) atom. In the sixth O site, O(7) is bonded in a single-bond geometry to one S(7) atom. In the seventh O site, O(8) is bonded in a single-bond geometry to one S(8) atom. In the eighth O site, O(9) is bonded in a bent 120 degrees geometry to one S(3) and one S(8) atom. In the ninth O site, O(10) is bonded in a single-bond geometry to one S(7) atom. In the tenth O site, O(11) is bonded in a bent 120 degrees geometry to one S(4) and one S(5) atom. In the eleventh O site, O(12) is bonded in a bent 120 degrees geometry to one S(1) and one S(2) atom. In the twelfth O site, O(13) is bonded in a single-bond geometry to one S(8) atom. In the thirteenth O site, O(14) is bonded in a single-bond geometry to one S(1) atom. In the fourteenth O site, O(16) is bonded in a single-bond geometry to one S(5) atom. In the fifteenth O site, O(17) is bonded in a single-bond geometry to one S(4) atom. In the sixteenth O site, O(18) is bonded in a single-bond geometry to one S(3) atom. In the seventeenth O site, O(19) is bonded in a bent 120 degrees geometry to one Mg(1) and one S(7) atom. In the eighteenth O site, O(20) is bonded in a linear geometry to one Mg(1) and one S(1) atom. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one S(8) atom. In the second F site, F(2) is bonded in a single-bond geometry to one S(7) atom. In the third F site, F(3) is bonded in a single-bond geometry to one Mg(1) atom. In the fourth F site, F(4) is bonded in a single-bond geometry to one S(5) atom. In the fifth F site, F(5) is bonded in a single-bond geometry to one S(4) atom. In the sixth F site, F(6) is bonded in a single-bond geometry to one S(3) atom. In the seventh F site, F(7) is bonded in a single-bond geometry to one S(2) atom. In the eighth F site, F(8) is bonded in a single-bond geometry to one S(1) atom.
MgS7(O9F4)2SO2 is Indium-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one sulfur dioxide molecule and one MgS7(O9F4)2 cluster. In the MgS7(O9F4)2 cluster, Mg(1) is bonded to one O(19), one O(20), one O(4), one F(1), and one F(3) atom to form distorted MgO3F2 trigonal bipyramids that share  a cornercorner with one S(1)O3F tetrahedra,  a cornercorner with one S(4)O3F tetrahedra,  a cornercorner with one S(7)O3F tetrahedra, and  a cornercorner with one S(8)O3F tetrahedra. The Mg(1)-O(19) bond length is 1.95 Å. The Mg(1)-O(20) bond length is 2.16 Å. The Mg(1)-O(4) bond length is 2.26 Å. The Mg(1)-F(1) bond length is 2.26 Å. The Mg(1)-F(3) bond length is 1.82 Å. There are seven inequivalent S sites. In the first S site, S(1) is bonded to one O(12), one O(14), one O(20), and one F(8) atom to form SO3F tetrahedra that share  a cornercorner with one S(2)O3F tetrahedra and  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. The S(1)-O(12) bond length is 1.60 Å. The S(1)-O(14) bond length is 1.41 Å. The S(1)-O(20) bond length is 1.43 Å. The S(1)-F(8) bond length is 1.56 Å. In the second S site, S(2) is bonded to one O(1), one O(12), one O(2), and one F(7) atom to form corner-sharing SO3F tetrahedra. The S(2)-O(1) bond length is 1.42 Å. The S(2)-O(12) bond length is 1.68 Å. The S(2)-O(2) bond length is 1.41 Å. The S(2)-F(7) bond length is 1.57 Å. In the third S site, S(3) is bonded to one O(18), one O(3), one O(9), and one F(6) atom to form corner-sharing SO3F tetrahedra. The S(3)-O(18) bond length is 1.41 Å. The S(3)-O(3) bond length is 1.41 Å. The S(3)-O(9) bond length is 1.70 Å. The S(3)-F(6) bond length is 1.57 Å. In the fourth S site, S(4) is bonded to one O(11), one O(17), one O(4), and one F(5) atom to form SO3F tetrahedra that share  a cornercorner with one S(5)O3F tetrahedra and  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. The S(4)-O(11) bond length is 1.62 Å. The S(4)-O(17) bond length is 1.41 Å. The S(4)-O(4) bond length is 1.43 Å. The S(4)-F(5) bond length is 1.56 Å. In the fifth S site, S(5) is bonded to one O(11), one O(16), one O(5), and one F(4) atom to form corner-sharing SO3F tetrahedra. The S(5)-O(11) bond length is 1.67 Å. The S(5)-O(16) bond length is 1.42 Å. The S(5)-O(5) bond length is 1.41 Å. The S(5)-F(4) bond length is 1.56 Å. In the sixth S site, S(7) is bonded to one O(10), one O(19), one O(7), and one F(2) atom to form SO3F tetrahedra that share  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. The S(7)-O(10) bond length is 1.44 Å. The S(7)-O(19) bond length is 1.50 Å. The S(7)-O(7) bond length is 1.43 Å. The S(7)-F(2) bond length is 1.63 Å. In the seventh S site, S(8) is bonded to one O(13), one O(8), one O(9), and one F(1) atom to form SO3F tetrahedra that share  a cornercorner with one S(3)O3F tetrahedra and  a cornercorner with one Mg(1)O3F2 trigonal bipyramid. The S(8)-O(13) bond length is 1.41 Å. The S(8)-O(8) bond length is 1.42 Å. The S(8)-O(9) bond length is 1.61 Å. The S(8)-F(1) bond length is 1.67 Å. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one S(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one S(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one S(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mg(1) and one S(4) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one S(5) atom. In the sixth O site, O(7) is bonded in a single-bond geometry to one S(7) atom. In the seventh O site, O(8) is bonded in a single-bond geometry to one S(8) atom. In the eighth O site, O(9) is bonded in a bent 120 degrees geometry to one S(3) and one S(8) atom. In the ninth O site, O(10) is bonded in a single-bond geometry to one S(7) atom. In the tenth O site, O(11) is bonded in a bent 120 degrees geometry to one S(4) and one S(5) atom. In the eleventh O site, O(12) is bonded in a bent 120 degrees geometry to one S(1) and one S(2) atom. In the twelfth O site, O(13) is bonded in a single-bond geometry to one S(8) atom. In the thirteenth O site, O(14) is bonded in a single-bond geometry to one S(1) atom. In the fourteenth O site, O(16) is bonded in a single-bond geometry to one S(5) atom. In the fifteenth O site, O(17) is bonded in a single-bond geometry to one S(4) atom. In the sixteenth O site, O(18) is bonded in a single-bond geometry to one S(3) atom. In the seventeenth O site, O(19) is bonded in a bent 120 degrees geometry to one Mg(1) and one S(7) atom. In the eighteenth O site, O(20) is bonded in a linear geometry to one Mg(1) and one S(1) atom. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one S(8) atom. In the second F site, F(2) is bonded in a single-bond geometry to one S(7) atom. In the third F site, F(3) is bonded in a single-bond geometry to one Mg(1) atom. In the fourth F site, F(4) is bonded in a single-bond geometry to one S(5) atom. In the fifth F site, F(5) is bonded in a single-bond geometry to one S(4) atom. In the sixth F site, F(6) is bonded in a single-bond geometry to one S(3) atom. In the seventh F site, F(7) is bonded in a single-bond geometry to one S(2) atom. In the eighth F site, F(8) is bonded in a single-bond geometry to one S(1) atom.