Materials Data on Rb3H(SO4)2 by Materials Project

Abstract

Rb3H(SO4)2 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are three inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 12-coordinate geometry to two equivalent H1+ and ten O2- atoms. There are one shorter (3.01 Å) and one longer (3.02 Å) Rb–H bond lengths. There are a spread of Rb–O bond distances ranging from 2.85–3.30 Å. In the second Rb1+ site, Rb1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Rb–O bond distances ranging from 3.00–3.22 Å. In the third Rb1+ site, Rb1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Rb–O bond distances ranging from 3.02–3.31 Å. H1+ is bonded in a linear geometry to two equivalent Rb1+ and two O2- atoms. There is one shorter (1.07 Å) and one longer (1.45 Å) H–O bond length. There are two inequivalent S6+ sites. In the first S6+ site, S6+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.47 Å) and one longer (1.60 Å) S–O bond length. In the second S6+ site, S6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.48–1.53 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to three Rb1+, one H1+, and one S6+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to three Rb1+, one H1+, and one S6+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to four Rb1+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to four Rb1+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to four Rb1+ and one S6+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to four Rb1+ and one S6+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to three Rb1+ and one S6+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to three Rb1+ and one S6+ atom.