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Materials Data on Bi12PbO20 by Materials Project

PbBi12O20 crystallizes in the cubic I23 space group. The structure is three-dimensional. Pb4+ is bonded to four equivalent O2- atoms to form PbO4 tetrahedra that share corners with twelve equivalent BiO5 square pyramids. All Pb–O bond lengths are 2.11 Å. Bi3+ is bonded to five O2- atoms to form distorted BiO5 square pyramids that share corners with eight equivalent BiO5 square pyramids, a cornercorner with one PbO4 tetrahedra, and an edgeedge with one BiO5 square pyramid. There are a spread of Bi–O bond distances ranging from 2.11–2.60 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Bi3+ atoms. In the third O2- site, O2- is bonded to one Pb4+ and three equivalent Bi3+ atoms to form corner-sharing OBi3Pb tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on Bi12PbO19 by Materials Project

Bi12PbO19 is Antimony trioxide-derived structured and crystallizes in the trigonal R3 space group. The structure is three-dimensional. Pb2+ is bonded in a 3-coordinate geometry to three equivalent O2- atoms. All Pb–O bond lengths are 2.26 Å. There are four inequivalent Bi3+ sites. In the first Bi3+ site, 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 2.10–2.37 Å. In the second Bi3+ site, Bi3+ is bonded to five O2- atoms to form distorted corner-sharing BiO5 square pyramids. There are a spread of Bi–O bond distances ranging from 2.11–2.69 Å. In the third Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.11–2.77 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.13–2.77 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Bi3+ atoms. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to three Bi3+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Bi3+ atoms. In the fifth O2- site, O2- is bonded to one Pb2+ and three Bi3+ atoms to form corner-sharing OBi3Pb tetrahedra. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to three Bi3+ atoms. In the seventh O2- site, O2- is bonded in a trigonal planar geometry to three Bi3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Bi10(Pb2O7)3 by Materials Project

Bi10(Pb2O7)3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Pb–O bond distances ranging from 2.25–2.59 Å. In the second Pb2+ site, Pb2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Pb–O bond distances ranging from 2.22–2.58 Å. In the third Pb2+ site, Pb2+ is bonded in a 3-coordinate geometry to three O2- atoms. There are one shorter (2.23 Å) and two longer (2.32 Å) Pb–O bond lengths. There are five inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded to five O2- atoms to form distorted corner-sharing BiO5 square pyramids. There are a spread of Bi–O bond distances ranging from 2.12–2.43 Å. In the second Bi3+ site, Bi3+ is bonded to five O2- atoms to form a mixture of distorted corner and edge-sharing BiO5 square pyramids. There are a spread of Bi–O bond distances ranging from 2.17–2.55 Å. In the third Bi3+ site, Bi3+ is bonded to five O2- atoms to form a mixture of distorted corner and edge-sharing BiO5 square pyramids. There are a spread of Bi–O bond distances ranging from 2.13–2.66 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.14–2.67 Å. In the fifth Bi3+ site, Bi3+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.13–3.00 Å. There are eleven inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three Bi3+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Pb2+ and two Bi3+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to one Pb2+ and three Bi3+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Pb2+ and two Bi3+ atoms. In the fifth O2- site, O2- is bonded to two Pb2+ and two equivalent Bi3+ atoms to form distorted edge-sharing OBi2Pb2 tetrahedra. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Pb2+ and two Bi3+ atoms. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Pb2+ and three Bi3+ atoms. In the eighth O2- site, O2- is bonded in a trigonal non-coplanar geometry to one Pb2+ and two Bi3+ atoms. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to one Pb2+ and two Bi3+ atoms. In the tenth O2- site, O2- is bonded in a 4-coordinate geometry to one Pb2+ and three Bi3+ atoms. In the eleventh O2- site, O2- is bonded in a distorted square co-planar geometry to two equivalent Pb2+ and two equivalent Bi3+ atoms.

36 MATERIALS SCIENCE↗