Sr2Sb2(SO3)5 crystallizes in the monoclinic C2/c space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), one O(8), and two equivalent O(3) atoms. Sb(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(5) atom. There are three inequivalent S sites. In the first S site, S(1) is bonded in a trigonal non-coplanar geometry to one O(5), one O(6), and one O(8) atom. In the second S site, S(2) is bonded in a bent 120 degrees geometry to two equivalent O(4) atoms. In the third S site, S(3) is bonded in a water-like geometry to one O(2) and one O(3) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sb(1), and one O(7) atom. In the second O site, O(2) is bonded in a water-like geometry to one Sr(1) and one S(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one S(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(1) and one S(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Sr(1), one Sb(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Sr(1) and one S(1) atom. In the seventh O site, O(7) is bonded in a water-like geometry to two equivalent O(1) atoms. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sr(1) and one S(1) atom.
Sr2Sb2(SO3)5 crystallizes in the monoclinic C2/c space group. Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), one O(8), and two equivalent O(3) atoms. The Sr(1)-O(1) bond length is 3.22 Å. The Sr(1)-O(2) bond length is 2.58 Å. The Sr(1)-O(4) bond length is 3.01 Å. The Sr(1)-O(5) bond length is 3.28 Å. The Sr(1)-O(6) bond length is 2.47 Å. The Sr(1)-O(8) bond length is 2.59 Å. There is one shorter (2.52 Å) and one longer (2.87 Å) Sr(1)-O(3) bond length. Sb(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(5) atom. The Sb(1)-O(1) bond length is 2.13 Å. The Sb(1)-O(5) bond length is 2.06 Å. There are three inequivalent S sites. In the first S site, S(1) is bonded in a trigonal non-coplanar geometry to one O(5), one O(6), and one O(8) atom. The S(1)-O(5) bond length is 1.67 Å. The S(1)-O(6) bond length is 1.51 Å. The S(1)-O(8) bond length is 1.49 Å. In the second S site, S(2) is bonded in a bent 120 degrees geometry to two equivalent O(4) atoms. Both S(2)-O(4) bond lengths are 1.48 Å. In the third S site, S(3) is bonded in a water-like geometry to one O(2) and one O(3) atom. The S(3)-O(2) bond length is 1.51 Å. The S(3)-O(3) bond length is 1.53 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sb(1), and one O(7) atom. The O(1)-O(7) bond length is 1.44 Å. In the second O site, O(2) is bonded in a water-like geometry to one Sr(1) and one S(3) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one S(3) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(1) and one S(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Sr(1), one Sb(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Sr(1) and one S(1) atom. In the seventh O site, O(7) is bonded in a water-like geometry to two equivalent O(1) atoms. In the eighth O site, O(8) is bonded in a distorted linear geometry to one Sr(1) and one S(1) atom.