Sb6O7(SO4)2 crystallizes in the orthorhombic Ccc2 space group. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(6), and two equivalent O(7) atoms. In the second Sb site, Sb(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(6), and two equivalent O(5) atoms. In the third Sb site, Sb(3) is bonded in a distorted rectangular see-saw-like geometry to one O(4), one O(5), one O(6), and one O(7) atom. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one S(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sb(1) and one S(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sb(2) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to two equivalent Sb(3) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Sb(3) and two equivalent Sb(2) atoms. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Sb(1), one Sb(2), and one Sb(3) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Sb(3) and two equivalent Sb(1) atoms. In the eighth O site, O(8) is bonded in a single-bond geometry to one S(1) atom.
Sb6O7(SO4)2 crystallizes in the orthorhombic Ccc2 space group. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(6), and two equivalent O(7) atoms. The Sb(1)-O(2) bond length is 2.35 Å. The Sb(1)-O(6) bond length is 2.16 Å. There is one shorter (2.00 Å) and one longer (2.04 Å) Sb(1)-O(7) bond length. In the second Sb site, Sb(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(6), and two equivalent O(5) atoms. The Sb(2)-O(3) bond length is 2.28 Å. The Sb(2)-O(6) bond length is 2.07 Å. There is one shorter (2.02 Å) and one longer (2.19 Å) Sb(2)-O(5) bond length. In the third Sb site, Sb(3) is bonded in a distorted rectangular see-saw-like geometry to one O(4), one O(5), one O(6), and one O(7) atom. The Sb(3)-O(4) bond length is 2.00 Å. The Sb(3)-O(5) bond length is 2.14 Å. The Sb(3)-O(6) bond length is 2.09 Å. The Sb(3)-O(7) bond length is 2.29 Å. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(8) atom. The S(1)-O(1) bond length is 1.45 Å. The S(1)-O(2) bond length is 1.49 Å. The S(1)-O(3) bond length is 1.52 Å. The S(1)-O(8) bond length is 1.46 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one S(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sb(1) and one S(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Sb(2) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to two equivalent Sb(3) atoms. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Sb(3) and two equivalent Sb(2) atoms. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Sb(1), one Sb(2), and one Sb(3) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Sb(3) and two equivalent Sb(1) atoms. In the eighth O site, O(8) is bonded in a single-bond geometry to one S(1) atom.