Zn(IO3)2 crystallizes in the monoclinic P2_1 space group. Zn(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one I(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one I(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one I(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one I(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(1) and one I(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(1) and one I(1) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom.
Zn(IO3)2 crystallizes in the monoclinic P2_1 space group. Zn(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Zn(1)-O(1) bond length is 2.15 Å. The Zn(1)-O(2) bond length is 2.05 Å. The Zn(1)-O(3) bond length is 2.11 Å. The Zn(1)-O(4) bond length is 2.08 Å. The Zn(1)-O(5) bond length is 2.07 Å. The Zn(1)-O(6) bond length is 2.10 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one I(2) atom. The O(1)-I(2) bond length is 1.82 Å. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one I(2) atom. The O(2)-I(2) bond length is 1.82 Å. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one I(2) atom. The O(3)-I(2) bond length is 1.82 Å. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one I(1) atom. The O(4)-I(1) bond length is 1.82 Å. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(1) and one I(1) atom. The O(5)-I(1) bond length is 1.83 Å. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(1) and one I(1) atom. The O(6)-I(1) bond length is 1.82 Å. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom.