Materials Data on P2Pb8O13 by Materials Project
Pb8P2O13 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are six inequivalent Pb2+ sites. In the first 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 2.24–2.98 Å. In the second Pb2+ site, Pb2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Pb–O bond distances ranging from 2.23–3.12 Å. In the third Pb2+ site, Pb2+ is bonded in a 5-coordinate geometry to three O2- atoms. There are two shorter (2.24 Å) and one longer (2.40 Å) Pb–O bond lengths. In the fourth Pb2+ site, Pb2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Pb–O bond distances ranging from 2.20–2.75 Å. In the fifth Pb2+ site, Pb2+ is bonded in a distorted pentagonal planar geometry to five O2- atoms. There are a spread of Pb–O bond distances ranging from 2.35–2.76 Å. In the sixth Pb2+ site, Pb2+ is bonded in a distorted pentagonal planar geometry to five O2- atoms. There are a spread of Pb–O bond distances ranging from 2.30–2.65 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.56 Å) and two longer (1.57 Å) P–O bond length. In the second P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three Pb2+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Pb2+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two Pb2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to three Pb2+ and one P5+ atom. In the fifth O2- site, O2- is bonded to four Pb2+ atoms to form a mixture of distorted edge and corner-sharing OPb4 tetrahedra. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to four Pb2+ atoms. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two Pb2+ and one P5+ atom. In the eighth O2- site, O2- is bonded to four Pb2+ atoms to form a mixture of distorted edge and corner-sharing OPb4 tetrahedra.