Materials Data on B by Materials Project

Abstract

B is beta Boron structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are fifteen inequivalent B sites. In the first B site, B is bonded in a distorted hexagonal planar geometry to six B atoms. There are a spread of B–B bond distances ranging from 1.75–1.77 Å. In the second B site, B is bonded in a 8-coordinate geometry to eight B atoms. There are a spread of B–B bond distances ranging from 1.76–1.88 Å. In the third B site, B is bonded in a 6-coordinate geometry to six B atoms. There are a spread of B–B bond distances ranging from 1.69–1.86 Å. In the fourth B site, B is bonded in a 6-coordinate geometry to six B atoms. There are a spread of B–B bond distances ranging from 1.70–1.85 Å. In the fifth B site, B is bonded in a 6-coordinate geometry to six B atoms. There is one shorter (1.64 Å) and two longer (1.75 Å) B–B bond length. In the sixth B site, B is bonded in a distorted q6 geometry to nine B atoms. There is three shorter (1.73 Å) and three longer (1.85 Å) B–B bond length. In the seventh B site, B is bonded in a 6-coordinate geometry to six equivalent B atoms. All B–B bond lengths are 1.73 Å. In the eighth B site, B is bonded in a distorted hexagonal planar geometry to six B atoms. There is two shorter (1.78 Å) and one longer (1.82 Å) B–B bond length. In the ninth B site, B is bonded in a 6-coordinate geometry to six B atoms. There is one shorter (1.70 Å) and one longer (1.83 Å) B–B bond length. In the tenth B site, B is bonded in a 6-coordinate geometry to six B atoms. Both B–B bond lengths are 1.78 Å. In the eleventh B site, B is bonded in a 6-coordinate geometry to six B atoms. Both B–B bond lengths are 1.82 Å. In the twelfth B site, B is bonded in a 8-coordinate geometry to eight B atoms. There are a spread of B–B bond distances ranging from 1.76–2.01 Å. In the thirteenth B site, B is bonded in a 6-coordinate geometry to six B atoms. There is one shorter (1.79 Å) and one longer (1.91 Å) B–B bond length. In the fourteenth B site, B is bonded in a 6-coordinate geometry to six B atoms. There is one shorter (1.86 Å) and one longer (1.92 Å) B–B bond length. In the fifteenth B site, B is bonded in a 8-coordinate geometry to eight B atoms.