KAu(SO4)2 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. Au(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one S(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Au(1), and one S(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1), one Au(1), and one S(1) atom.
KAu(SO4)2 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. Both K(1)-O(1) bond lengths are 2.74 Å. Both K(1)-O(2) bond lengths are 2.98 Å. Both K(1)-O(4) bond lengths are 3.27 Å. There are two shorter (2.79 Å) and two longer (2.87 Å) K(1)-O(3) bond lengths. Au(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. Both Au(1)-O(2) bond lengths are 2.01 Å. Both Au(1)-O(4) bond lengths are 2.01 Å. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The S(1)-O(1) bond length is 1.43 Å. The S(1)-O(2) bond length is 1.55 Å. The S(1)-O(3) bond length is 1.43 Å. The S(1)-O(4) bond length is 1.54 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one S(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Au(1), and one S(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1), one Au(1), and one S(1) atom.