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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Bi6P4PbO20 by Materials Project

PbBi6O4(PO4)4 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Pb2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Pb–O bond distances ranging from 2.57–2.76 Å. There are three inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.15–2.94 Å. In the second Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.28–2.81 Å. In the third Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.22–2.76 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 three shorter (1.56 Å) and one 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 is one shorter (1.55 Å) and three longer (1.56 Å) P–O bond length. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Pb2+, one Bi3+, and one P5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Pb2+, one Bi3+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to one Pb2+ and three Bi3+ atoms. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Pb2+, one Bi3+, and one P5+ atom. In the seventh O2- site, O2- is bonded to four Bi3+ atoms to form distorted edge-sharing OBi4 tetrahedra. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to two Bi3+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to two Bi3+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BiPPbO5 by Materials Project

PbBiOPO4 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Pb2+ is bonded to eight O2- atoms to form distorted PbO8 hexagonal bipyramids that share corners with two equivalent BiO5 square pyramids, corners with two equivalent PO4 tetrahedra, edges with three equivalent PbO8 hexagonal bipyramids, edges with three equivalent BiO5 square pyramids, and edges with two equivalent PO4 tetrahedra. There are a spread of Pb–O bond distances ranging from 2.48–2.97 Å. Bi3+ is bonded to five O2- atoms to form distorted BiO5 square pyramids that share corners with two equivalent PbO8 hexagonal bipyramids, corners with three equivalent PO4 tetrahedra, edges with three equivalent PbO8 hexagonal bipyramids, and an edgeedge with one BiO5 square pyramid. There are a spread of Bi–O bond distances ranging from 2.15–2.39 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent PbO8 hexagonal bipyramids, corners with three equivalent BiO5 square pyramids, and edges with two equivalent PbO8 hexagonal bipyramids. There are a spread of P–O bond distances ranging from 1.55–1.57 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Pb2+ and two equivalent Bi3+ atoms to form distorted edge-sharing OBi2Pb2 tetrahedra. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Pb2+, one Bi3+, and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one Pb2+, one Bi3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Pb2+, one Bi3+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Pb2+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BiP(PbO2)4 by Materials Project

Pb4BiO4PO4 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one Pb4BiO4PO4 sheet oriented in the (0, 0, 1) direction. there are four inequivalent Pb2+ sites. In the first 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 2.28–3.06 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 2.26–2.97 Å. In the third 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 2.33–3.06 Å. 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 2.25–2.92 Å. Bi3+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Bi–O bond distances ranging from 2.10–2.42 Å. 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. 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 one Bi3+ and one P5+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to four Pb2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to four Pb2+ and one Bi3+ atom. In the fifth O2- site, O2- is bonded to four Pb2+ atoms to form a mixture of edge and corner-sharing OPb4 tetrahedra. In the sixth O2- site, O2- is bonded to four Pb2+ atoms to form a mixture of edge and corner-sharing OPb4 tetrahedra. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one Bi3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Pb2+ and one Bi3+ atom.

36 MATERIALS SCIENCE↗