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Materials Data on Bi4(BO4)3 by Materials Project

Bi4(BO4)3 crystallizes in the cubic I-43d space group. The structure is three-dimensional. B3+ is bonded to four equivalent O2- atoms to form BO4 tetrahedra that share corners with eight equivalent BiO6 pentagonal pyramids. All B–O bond lengths are 1.48 Å. Bi+3.75+ is bonded to six equivalent O2- atoms to form distorted BiO6 pentagonal pyramids that share corners with six equivalent BO4 tetrahedra and edges with three equivalent BiO6 pentagonal pyramids. There are three shorter (2.24 Å) and three longer (2.42 Å) Bi–O bond lengths. O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Bi4(BO4)3 by Materials Project

Bi4(BO4)3 crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are three inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of B–O bond distances ranging from 1.41–1.57 Å. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.36 Å) and two longer (1.40 Å) B–O bond length. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.43 Å. There are four inequivalent Bi+3.75+ sites. In the first Bi+3.75+ site, Bi+3.75+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.26–2.86 Å. In the second Bi+3.75+ site, Bi+3.75+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.67 Å. In the third Bi+3.75+ site, Bi+3.75+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.21–2.91 Å. In the fourth Bi+3.75+ site, Bi+3.75+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.25–2.81 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms. In the second O2- site, O2- is bonded to four Bi+3.75+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the third O2- site, O2- is bonded to four Bi+3.75+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two Bi+3.75+ atoms. In the seventh O2- site, O2- is bonded in a single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and one Bi+3.75+ atom. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi+3.75+ atoms. In the twelfth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and one Bi+3.75+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Bi4(B2O5)3 by Materials Project

Bi4(B2O5)3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are three inequivalent B3+ sites. In the first B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.47–1.51 Å. In the second B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.44–1.52 Å. In the third B3+ site, B3+ is bonded to four O2- atoms to form a mixture of edge and corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.45–1.55 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.26–2.94 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 2.30–2.82 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent B3+ and two equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two B3+ and one Bi3+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two B3+ and two Bi3+ atoms. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and three Bi3+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two B3+ and one Bi3+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and three Bi3+ atoms. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and three Bi3+ atoms. In the eighth O2- site, O2- is bonded in a distorted L-shaped geometry to two equivalent B3+ and two equivalent Bi3+ atoms.

36 MATERIALS SCIENCE↗