K2O6I2Cl crystallizes in the orthorhombic Pca2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(6), two equivalent O(4), and two equivalent Cl(1) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(3), one O(6), two equivalent O(2), two equivalent O(5), and two equivalent Cl(1) atoms. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one I(2) atom. In the second O site, O(5) is bonded in a 3-coordinate geometry to two equivalent K(2) and one I(2) atom. In the third O site, O(6) is bonded in a trigonal non-coplanar geometry to one K(1), one K(2), and one I(2) atom. In the fourth O site, O(1) 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(2) is bonded in a trigonal non-coplanar geometry to two equivalent K(2) and one I(1) atom. In the sixth O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(2), and one I(1) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), one O(3), and one Cl(1) atom. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(1), one O(4), one O(5), one O(6), and one Cl(1) atom. Cl(1) is bonded to two equivalent K(1), two equivalent K(2), one I(1), and one I(2) atom to form distorted corner-sharing ClK4I2 octahedra. The corner-sharing octahedral tilt angles range from 10-54°.
K2O6I2Cl crystallizes in the orthorhombic Pca2_1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(6), two equivalent O(4), and two equivalent Cl(1) atoms. The K(1)-O(1) bond length is 2.75 Å. The K(1)-O(3) bond length is 2.79 Å. The K(1)-O(6) bond length is 2.89 Å. There is one shorter (2.84 Å) and one longer (2.90 Å) K(1)-O(4) bond length. There is one shorter (3.24 Å) and one longer (3.29 Å) K(1)-Cl(1) bond length. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(3), one O(6), two equivalent O(2), two equivalent O(5), and two equivalent Cl(1) atoms. The K(2)-O(3) bond length is 3.12 Å. The K(2)-O(6) bond length is 2.85 Å. Both K(2)-O(2) bond lengths are 2.81 Å. There is one shorter (2.73 Å) and one longer (3.17 Å) K(2)-O(5) bond length. There is one shorter (3.25 Å) and one longer (3.30 Å) K(2)-Cl(1) bond length. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one I(2) atom. The O(4)-I(2) bond length is 1.81 Å. In the second O site, O(5) is bonded in a 3-coordinate geometry to two equivalent K(2) and one I(2) atom. The O(5)-I(2) bond length is 1.83 Å. In the third O site, O(6) is bonded in a trigonal non-coplanar geometry to one K(1), one K(2), and one I(2) atom. The O(6)-I(2) bond length is 1.83 Å. In the fourth O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(2) atom. The O(1)-I(1) bond length is 1.86 Å. The O(1)-I(2) bond length is 2.67 Å. In the fifth O site, O(2) is bonded in a trigonal non-coplanar geometry to two equivalent K(2) and one I(1) atom. The O(2)-I(1) bond length is 1.80 Å. In the sixth O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(2), and one I(1) atom. The O(3)-I(1) bond length is 1.83 Å. There are two inequivalent I sites. In the first I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), one O(3), and one Cl(1) atom. The I(1)-Cl(1) bond length is 3.12 Å. In the second I site, I(2) is bonded in a 3-coordinate geometry to one O(1), one O(4), one O(5), one O(6), and one Cl(1) atom. The I(2)-Cl(1) bond length is 3.10 Å. Cl(1) is bonded to two equivalent K(1), two equivalent K(2), one I(1), and one I(2) atom to form distorted corner-sharing ClK4I2 octahedra. The corner-sharing octahedral tilt angles range from 10-54°.