BaH2O3 crystallizes in the monoclinic P2_1/m space group. Ba(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. In the second H site, H(2) 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 distorted trigonal non-coplanar geometry to three equivalent Ba(1) atoms. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Ba(1) and one H(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to three equivalent Ba(1) and one H(2) atom.
BaH2O3 crystallizes in the monoclinic P2_1/m space group. Ba(1) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. There are two shorter (2.98 Å) and one longer (3.00 Å) Ba(1)-O(1) bond length. All Ba(1)-O(2) bond lengths are 2.71 Å. There is one shorter (2.76 Å) and two longer (2.83 Å) Ba(1)-O(3) bond lengths. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. The H(1)-O(2) bond length is 0.97 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(3) atom. The H(2)-O(3) bond length is 0.98 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ba(1) atoms. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Ba(1) and one H(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to three equivalent Ba(1) and one H(2) atom.