KH2OI3 crystallizes in the monoclinic Pc space group. K(1) is bonded in a 2-coordinate geometry to two equivalent O(1), one I(2), three equivalent I(1), and three equivalent I(3) atoms. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. O(1) is bonded in a distorted water-like geometry to two equivalent K(1), one H(1), and one H(2) atom. There are three inequivalent I sites. In the first I site, I(1) is bonded in a 4-coordinate geometry to three equivalent K(1) and one I(2) atom. In the second I site, I(2) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(3) atom. In the third I site, I(3) is bonded in a 4-coordinate geometry to three equivalent K(1) and one I(2) atom.
KH2OI3 crystallizes in the monoclinic Pc space group. K(1) is bonded in a 2-coordinate geometry to two equivalent O(1), one I(2), three equivalent I(1), and three equivalent I(3) atoms. There is one shorter (2.77 Å) and one longer (2.81 Å) K(1)-O(1) bond length. The K(1)-I(2) bond length is 3.89 Å. There are a spread of K(1)-I(1) bond distances ranging from 3.72-4.02 Å. There are a spread of K(1)-I(3) bond distances ranging from 3.68-3.91 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. The H(2)-O(1) bond length is 0.98 Å. O(1) is bonded in a distorted water-like geometry to two equivalent K(1), one H(1), and one H(2) atom. There are three inequivalent I sites. In the first I site, I(1) is bonded in a 4-coordinate geometry to three equivalent K(1) and one I(2) atom. The I(1)-I(2) bond length is 2.97 Å. In the second I site, I(2) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(3) atom. The I(2)-I(3) bond length is 2.96 Å. In the third I site, I(3) is bonded in a 4-coordinate geometry to three equivalent K(1) and one I(2) atom.