Materials Data on Ba(H9O5)2 by Materials Project

Abstract

Ba(H3O4)2(H2)4(H2O)2 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of sixteen hydrogen molecules; eight water molecules; and two Ba(H3O4)2 ribbons oriented in the (0, 1, 0) direction. In each Ba(H3O4)2 ribbon, Ba2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ba–O bond distances ranging from 2.43–3.17 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.01 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Ba2+ and two H1+ atoms. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ba2+ and one O2- atom. The O–O bond length is 1.29 Å. In the third O2- site, O2- is bonded in a water-like geometry to one Ba2+ and two H1+ atoms. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one O2- atom. The O–O bond length is 1.44 Å. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Ba2+, one H1+, and one O2- atom. The O–O bond length is 1.49 Å. In the sixth O2- site, O2- is bonded in a distorted L-shaped geometry to one Ba2+ and one O2- atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+ and one O2- atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one Ba2+, one H1+, and one O2- atom.