Cu(OH)IO3 crystallizes in the orthorhombic Pnma space group. Cu(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted edge-sharing CuO6 octahedra. H(1) is bonded in a single-bond geometry to one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Cu(1) and one I(1) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Cu(1) and one I(1) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to two equivalent Cu(1) and one H(1) atom. I(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms.
Cu(OH)IO3 crystallizes in the orthorhombic Pnma space group. Cu(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted edge-sharing CuO6 octahedra. Both Cu(1)-O(1) bond lengths are 2.57 Å. Both Cu(1)-O(2) bond lengths are 1.99 Å. Both Cu(1)-O(3) bond lengths are 1.99 Å. H(1) is bonded in a single-bond geometry to one O(3) atom. The H(1)-O(3) bond length is 1.00 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Cu(1) and one I(1) atom. The O(1)-I(1) bond length is 1.83 Å. In the second O site, O(2) is bonded in a distorted water-like geometry to one Cu(1) and one I(1) atom. The O(2)-I(1) bond length is 1.89 Å. In the third O site, O(3) is bonded in a 1-coordinate geometry to two equivalent Cu(1) and one H(1) atom. I(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms.