DOI: 10.17188/1725323
title: Materials Data on CsBe2P2HO8 by Materials Project

description: CsBe2P2HO8 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Cs–O bond distances ranging from 3.14–3.40 Å. In the second Cs1+ site, Cs1+ is bonded in a 12-coordinate geometry to one H1+ and eleven O2- atoms. The Cs–H bond length is 3.26 Å. There are a spread of Cs–O bond distances ranging from 3.05–3.70 Å. There are four inequivalent Be2+ sites. In the first Be2+ site, Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with four PO4 tetrahedra. There are a spread of Be–O bond distances ranging from 1.62–1.68 Å. In the second Be2+ site, Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with four PO4 tetrahedra and an edgeedge with one BeO4 tetrahedra. There are a spread of Be–O bond distances ranging from 1.58–1.70 Å. In the third Be2+ site, Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with four PO4 tetrahedra. There are a spread of Be–O bond distances ranging from 1.62–1.65 Å. In the fourth Be2+ site, Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with four PO4 tetrahedra and an edgeedge with one BeO4 tetrahedra. There are a spread of Be–O bond distances ranging from 1.58–1.70 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four BeO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with five BeO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.53–1.58 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three BeO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four BeO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.51–1.58 Å. There are two 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 1.00 Å. In the second H1+ site, H1+ is bonded in a linear geometry to one Cs1+ and two O2- atoms. There is one shorter (1.04 Å) and one longer (1.52 Å) H–O bond length. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Cs1+, one Be2+, and one P5+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Be2+, one P5+, and one H1+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Be2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Cs1+, one Be2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted T-shaped geometry to two equivalent Be2+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Be2+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Cs1+, one Be2+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Cs1+, one Be2+, and one P5+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Be2+, and one P5+ atom. In the tenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cs1+, one Be2+, and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Cs1+, one Be2+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Cs1+, one P5+, and one H1+ atom. In the thirteenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Cs1+, one Be2+, and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Be2+ and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Be2+, and one P5+ atom. In the sixteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Cs1+, one P5+, and one H1+ atom.