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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on SrBi2B2O7 by Materials Project

SrBi2B2O7 crystallizes in the hexagonal P6_3 space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.56–2.73 Å. There are six inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All B–O bond lengths are 1.38 Å. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All B–O bond lengths are 1.40 Å. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All B–O bond lengths are 1.40 Å. In the fourth B3+ site, B3+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All B–O bond lengths are 1.38 Å. In the fifth B3+ site, B3+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All B–O bond lengths are 1.38 Å. In the sixth B3+ site, B3+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All B–O bond lengths are 1.38 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.18–2.94 Å. In the second Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.18–2.93 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and three Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and two equivalent Bi3+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and two equivalent Bi3+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sr2+ and two Bi3+ atoms. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and three Bi3+ atoms. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and one Bi3+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and one Bi3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrBi2(B2O5)2 by Materials Project

SrBi2B4O10 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.56–2.85 Å. There are four inequivalent B3+ sites. In the first 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 1.35–1.41 Å. In the second 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 1.37–1.41 Å. 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 1.36–1.41 Å. In the fourth B3+ site, B3+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of B–O bond distances ranging from 1.46–1.51 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.15–3.00 Å. In the second Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.23–2.73 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and two equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Sr2+ and three Bi3+ atoms. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Sr2+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to two B3+ and one Bi3+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Sr2+, one B3+, and one Bi3+ atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one Sr2+ and two B3+ atoms. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Bi3+ atoms. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sr2+, two B3+, and one Bi3+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to one Sr2+, one B3+, and two Bi3+ atoms. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to one Sr2+, one B3+, and one Bi3+ atom.

36 MATERIALS SCIENCE↗