Materials Data on Rb2Be2Cd(O3F4)2 by Materials Project

Abstract

Rb2Be2Cd(O3F4)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Rb is bonded in a 8-coordinate geometry to two O and six F atoms. There are one shorter (3.02 Å) and one longer (3.14 Å) Rb–O bond lengths. There are a spread of Rb–F bond distances ranging from 2.78–3.10 Å. Be is bonded in a tetrahedral geometry to four F atoms. There are a spread of Be–F bond distances ranging from 1.53–1.63 Å. Cd is bonded in a distorted octahedral geometry to six O atoms. There are a spread of Cd–O bond distances ranging from 2.16–2.41 Å. There are three inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one Rb and one Cd atom. In the second O site, O is bonded in a distorted single-bond geometry to one Rb and one Cd atom. In the third O site, O is bonded in a single-bond geometry to one Cd atom. There are four inequivalent F sites. In the first F site, F is bonded in a distorted single-bond geometry to two equivalent Rb and one Be atom. In the second F site, F is bonded in a distorted single-bond geometry to one Rb and one Be atom. In the third F site, F is bonded in a single-bond geometry to two equivalent Rb and one Be atom. In the fourth F site, F is bonded in a distorted single-bond geometry to one Rb and one Be atom.