Materials Data on BiF3 by Materials Project

Abstract

BiF3 is alpha bismuth trifluoride structured and crystallizes in the cubic P-43m space group. The structure is three-dimensional. Bi3+ is bonded in a distorted body-centered cubic geometry to fourteen F1- atoms. There are a spread of Bi–F bond distances ranging from 2.47–2.92 Å. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a 3-coordinate geometry to six equivalent Bi3+ and eight F1- atoms. There are a spread of F–F bond distances ranging from 2.45–2.54 Å. In the second F1- site, F1- is bonded to four equivalent Bi3+ and four equivalent F1- atoms to form a mixture of edge, face, and corner-sharing FBi4F4 tetrahedra. In the third F1- site, F1- is bonded to four equivalent Bi3+ and four equivalent F1- atoms to form a mixture of edge, face, and corner-sharing FBi4F4 tetrahedra. In the fourth F1- site, F1- is bonded to four equivalent Bi3+ and four equivalent F1- atoms to form a mixture of edge, face, and corner-sharing FBi4F4 tetrahedra. In the fifth F1- site, F1- is bonded to four equivalent Bi3+ and four equivalent F1- atoms to form a mixture of edge, face, and corner-sharing FBi4F4 tetrahedra.