Materials Data on GePb3O5 by Materials Project

Abstract

Pb3GeO5 crystallizes in the monoclinic P2 space group. The structure is three-dimensional. there are three inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 6-coordinate geometry to five O2- atoms. There are a spread of Pb–O bond distances ranging from 2.32–2.64 Å. In the second Pb2+ site, Pb2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Pb–O bond distances ranging from 2.59–2.72 Å. In the third Pb2+ site, Pb2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are four shorter (2.60 Å) and two longer (2.71 Å) Pb–O bond lengths. Ge4+ is bonded in a tetrahedral geometry to four O2- atoms. All Ge–O bond lengths are 1.78 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three Pb2+ and one Ge4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Pb2+ and one Ge4+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to five Pb2+ atoms.