Materials Data on Rb2BiPWO8 by Materials Project
Rb2Bi(PO4)(WO4) crystallizes in the orthorhombic Ibca space group. The structure is three-dimensional. Rb1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Rb–O bond distances ranging from 2.89–3.33 Å. W6+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.81 Å) and two longer (1.83 Å) W–O bond length. Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.40–2.64 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.55 Å) and two longer (1.56 Å) P–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Rb1+ and one W6+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Rb1+, one Bi3+, and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Rb1+, one W6+, and one Bi3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Rb1+, two equivalent Bi3+, and one P5+ atom.