BaH4(OBr)2 crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 10-coordinate geometry to four equivalent O(1) and six equivalent Br(1) 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 Ba(1), one H(1), and one H(2) atom. Br(1) is bonded in a 3-coordinate geometry to three equivalent Ba(1) atoms.
BaH4(OBr)2 crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 10-coordinate geometry to four equivalent O(1) and six equivalent Br(1) atoms. There are two shorter (2.83 Å) and two longer (2.94 Å) Ba(1)-O(1) bond lengths. There are a spread of Ba(1)-Br(1) bond distances ranging from 3.42-3.57 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 0.99 Å. O(1) is bonded in a water-like geometry to two equivalent Ba(1), one H(1), and one H(2) atom. Br(1) is bonded in a 3-coordinate geometry to three equivalent Ba(1) atoms.