K2SnH2OCl4 crystallizes in the orthorhombic Pnma space group. K(1) is bonded to one O(1), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(3) atoms to form a mixture of distorted corner, face, and edge-sharing KCl6O pentagonal bipyramids. Sn(1) is bonded in a 3-coordinate geometry to one Cl(1) and two equivalent Cl(2) 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 water-like geometry to two equivalent K(1), one H(1), and one H(2) atom. There are three inequivalent Cl sites. In the first Cl site, Cl(3) is bonded in a distorted rectangular see-saw-like geometry to four equivalent K(1) atoms. In the second Cl site, Cl(1) is bonded to four equivalent K(1) and one Sn(1) atom to form distorted corner-sharing ClK4Sn square pyramids. In the third Cl site, Cl(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Sn(1) atom.
K2SnH2OCl4 crystallizes in the orthorhombic Pnma space group. K(1) is bonded to one O(1), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(3) atoms to form a mixture of distorted corner, face, and edge-sharing KCl6O pentagonal bipyramids. The K(1)-O(1) bond length is 2.86 Å. There is one shorter (3.29 Å) and one longer (3.33 Å) K(1)-Cl(1) bond length. There is one shorter (3.28 Å) and one longer (3.31 Å) K(1)-Cl(2) bond length. There is one shorter (3.21 Å) and one longer (3.27 Å) K(1)-Cl(3) bond length. Sn(1) is bonded in a 3-coordinate geometry to one Cl(1) and two equivalent Cl(2) atoms. The Sn(1)-Cl(1) bond length is 2.65 Å. Both Sn(1)-Cl(2) bond lengths are 2.62 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 0.99 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 water-like geometry to two equivalent K(1), one H(1), and one H(2) atom. There are three inequivalent Cl sites. In the first Cl site, Cl(3) is bonded in a distorted rectangular see-saw-like geometry to four equivalent K(1) atoms. In the second Cl site, Cl(1) is bonded to four equivalent K(1) and one Sn(1) atom to form distorted corner-sharing ClK4Sn square pyramids. In the third Cl site, Cl(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Sn(1) atom.