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.