KAu(O3I)4 crystallizes in the monoclinic C2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. Au(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(3) and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one I(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one K(1) and one I(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Au(1) and one I(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one I(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one K(1), one Au(1), and one I(2) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom.
KAu(O3I)4 crystallizes in the monoclinic C2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. Both K(1)-O(2) bond lengths are 2.91 Å. Both K(1)-O(4) bond lengths are 2.81 Å. Both K(1)-O(5) bond lengths are 3.17 Å. Both K(1)-O(6) bond lengths are 3.21 Å. Au(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(3) and two equivalent O(6) atoms. Both Au(1)-O(3) bond lengths are 2.03 Å. Both Au(1)-O(6) bond lengths are 2.01 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one I(1) atom. The O(1)-I(1) bond length is 1.82 Å. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one K(1) and one I(1) atom. The O(2)-I(1) bond length is 1.82 Å. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Au(1) and one I(1) atom. The O(3)-I(1) bond length is 1.93 Å. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(2) atom. The O(4)-I(1) bond length is 2.57 Å. The O(4)-I(2) bond length is 1.82 Å. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one I(2) atom. The O(5)-I(2) bond length is 1.83 Å. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one K(1), one Au(1), and one I(2) atom. The O(6)-I(2) bond length is 1.92 Å. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom.