Cs7Au5O2 crystallizes in the orthorhombic Immm space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a distorted single-bond geometry to three equivalent Au(1), three equivalent Au(2), and one O(1) atom. In the second Cs site, Cs(2) is bonded in a distorted linear geometry to two equivalent Au(1), two equivalent Au(2), and two equivalent O(1) atoms. In the third Cs site, Cs(3) is bonded in a distorted linear geometry to four equivalent Au(1) and two equivalent O(1) atoms. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted q6 geometry to two equivalent Cs(2), two equivalent Cs(3), and six equivalent Cs(1) atoms. In the second Au site, Au(2) is bonded in a distorted body-centered cubic geometry to two equivalent Cs(2) and six equivalent Cs(1) atoms. In the third Au site, Au(3) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded to one Cs(3), two equivalent Cs(1), two equivalent Cs(2), and one Au(3) atom to form corner-sharing OCs5Au octahedra. The corner-sharing octahedra are not tilted.
Cs7Au5O2 crystallizes in the orthorhombic Immm space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a distorted single-bond geometry to three equivalent Au(1), three equivalent Au(2), and one O(1) atom. There is one shorter (3.82 Å) and two longer (4.08 Å) Cs(1)-Au(1) bond lengths. There is one shorter (3.67 Å) and two longer (3.70 Å) Cs(1)-Au(2) bond lengths. The Cs(1)-O(1) bond length is 2.92 Å. In the second Cs site, Cs(2) is bonded in a distorted linear geometry to two equivalent Au(1), two equivalent Au(2), and two equivalent O(1) atoms. Both Cs(2)-Au(1) bond lengths are 3.79 Å. Both Cs(2)-Au(2) bond lengths are 3.83 Å. Both Cs(2)-O(1) bond lengths are 3.02 Å. In the third Cs site, Cs(3) is bonded in a distorted linear geometry to four equivalent Au(1) and two equivalent O(1) atoms. All Cs(3)-Au(1) bond lengths are 3.94 Å. Both Cs(3)-O(1) bond lengths are 2.83 Å. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a distorted q6 geometry to two equivalent Cs(2), two equivalent Cs(3), and six equivalent Cs(1) atoms. In the second Au site, Au(2) is bonded in a distorted body-centered cubic geometry to two equivalent Cs(2) and six equivalent Cs(1) atoms. In the third Au site, Au(3) is bonded in a linear geometry to two equivalent O(1) atoms. Both Au(3)-O(1) bond lengths are 2.02 Å. O(1) is bonded to one Cs(3), two equivalent Cs(1), two equivalent Cs(2), and one Au(3) atom to form corner-sharing OCs5Au octahedra. The corner-sharing octahedra are not tilted.