Ba2Zn(HO3)2(H2)2 crystallizes in the monoclinic P2_1/c space group. The structure consists of four 1333-74-0 molecules inside a Ba2Zn(HO3)2 framework. In the Ba2Zn(HO3)2 framework, Ba(1) is bonded in a 2-coordinate geometry to one O(1) and three equivalent O(2) atoms. Zn(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(3) atoms. H(3) 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 one Ba(1), one Zn(1), and one O(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Ba(1) and one O(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Zn(1) and one H(3) atom.
Ba2Zn(HO3)2(H2)2 crystallizes in the monoclinic P2_1/c space group. The structure consists of four 1333-74-0 molecules inside a Ba2Zn(HO3)2 framework. In the Ba2Zn(HO3)2 framework, Ba(1) is bonded in a 2-coordinate geometry to one O(1) and three equivalent O(2) atoms. The Ba(1)-O(1) bond length is 2.32 Å. There are a spread of Ba(1)-O(2) bond distances ranging from 2.27-2.89 Å. Zn(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(3) atoms. Both Zn(1)-O(1) bond lengths are 2.49 Å. Both Zn(1)-O(3) bond lengths are 1.87 Å. H(3) is bonded in a single-bond geometry to one O(3) atom. The H(3)-O(3) bond length is 0.99 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ba(1), one Zn(1), and one O(2) atom. The O(1)-O(2) bond length is 1.49 Å. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Ba(1) and one O(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Zn(1) and one H(3) atom.