Materials Data on Rb2Ag2Sn(PSe3)3 by Materials Project

Abstract

Rb2Ag2Sn(PSe3)3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 9-coordinate geometry to nine Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.59–3.82 Å. In the second Rb1+ site, Rb1+ is bonded in a 9-coordinate geometry to nine Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.51–3.93 Å. There are two inequivalent Ag+1.50+ sites. In the first Ag+1.50+ site, Ag+1.50+ is bonded in a 3-coordinate geometry to three Se2- atoms. There are a spread of Ag–Se bond distances ranging from 2.63–2.69 Å. In the second Ag+1.50+ site, Ag+1.50+ is bonded in a distorted trigonal non-coplanar geometry to three Se2- atoms. There are a spread of Ag–Se bond distances ranging from 2.65–2.72 Å. Sn4+ is bonded in a distorted T-shaped geometry to three Se2- atoms. There are a spread of Sn–Se bond distances ranging from 2.75–2.84 Å. There are three inequivalent P3+ sites. In the first P3+ site, P3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of P–Se bond distances ranging from 2.15–2.26 Å. In the second P3+ site, P3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are one shorter (2.19 Å) and two longer (2.25 Å) P–Se bond lengths. In the third P3+ site, P3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of P–Se bond distances ranging from 2.19–2.26 Å. There are nine inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 1-coordinate geometry to three Rb1+ and one P3+ atom. In the second Se2- site, Se2- is bonded in a 4-coordinate geometry to two Rb1+, one Sn4+, and one P3+ atom. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to two equivalent Rb1+, one Sn4+, and one P3+ atom. In the fourth Se2- site, Se2- is bonded in a 4-coordinate geometry to two equivalent Rb1+, one Ag+1.50+, and one P3+ atom. In the fifth Se2- site, Se2- is bonded in a 2-coordinate geometry to two equivalent Rb1+, one Ag+1.50+, and one P3+ atom. In the sixth Se2- site, Se2- is bonded to two equivalent Rb1+, one Ag+1.50+, and one P3+ atom to form distorted edge-sharing SeRb2AgP trigonal pyramids. In the seventh Se2- site, Se2- is bonded in a 3-coordinate geometry to one Rb1+, two equivalent Ag+1.50+, and one P3+ atom. In the eighth Se2- site, Se2- is bonded in a 4-coordinate geometry to two Rb1+, one Sn4+, and one P3+ atom. In the ninth Se2- site, Se2- is bonded in a 2-coordinate geometry to two Rb1+, one Ag+1.50+, and one P3+ atom.