Materials Data on Te(CF2)4 by Materials Project

Abstract

Te(CF2)2(CF2)2 crystallizes in the cubic Fd-3c space group. The structure is three-dimensional and consists of one hundred and ninety-two difluoromethane molecules and one Te(CF2)2 framework. In the Te(CF2)2 framework, C+2.50+ is bonded in a distorted single-bond geometry to one Te2- and one F1- atom. The C–Te bond length is 2.14 Å. The C–F bond length is 1.36 Å. Te2- is bonded in a 4-coordinate geometry to two equivalent C+2.50+ and four equivalent F1- atoms. There are two shorter (2.03 Å) and two longer (3.03 Å) Te–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Te2- atoms. In the second F1- site, F1- is bonded in a single-bond geometry to one C+2.50+ atom.