Materials Data on BiAsO4 by Materials Project
BiAsO4 is Zircon-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.36–2.70 Å. As5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of As–O bond distances ranging from 1.71–1.75 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Bi3+ and one As5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Bi3+ and one As5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Bi3+ and one As5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Bi3+ and one As5+ atom.