Materials Data on Ge7HO20 by Materials Project

Abstract

Ge7HO16(O2)2 crystallizes in the cubic P-43m space group. The structure is three-dimensional and consists of four water molecules and one Ge7HO16 framework. In the Ge7HO16 framework, there are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a tetrahedral geometry to four equivalent O atoms. All Ge–O bond lengths are 1.76 Å. In the second Ge site, Ge is bonded in a 6-coordinate geometry to six O atoms. There is three shorter (1.79 Å) and three longer (2.16 Å) Ge–O bond length. H is bonded in a tetrahedral geometry to four equivalent O atoms. All H–O bond lengths are 1.50 Å. There are two inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to two Ge atoms. In the second O site, O is bonded in a distorted single-bond geometry to three equivalent Ge and one H atom.