Materials Data on RbSnF3 by Materials Project

Abstract

RbSnF3 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one RbSnF3 sheet oriented in the (0, 0, 1) direction. Rb1+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Rb–F bond distances ranging from 2.93–3.37 Å. Sn2+ is bonded to five F1- atoms to form distorted corner-sharing SnF5 square pyramids. There are a spread of Sn–F bond distances ranging from 2.10–2.52 Å. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a 4-coordinate geometry to two equivalent Rb1+ and two equivalent Sn2+ atoms. In the second F1- site, F1- is bonded in a distorted single-bond geometry to four equivalent Rb1+ and one Sn2+ atom. In the third F1- site, F1- is bonded in a 4-coordinate geometry to two equivalent Rb1+ and two equivalent Sn2+ atoms.