Materials Data on TcF4 by Materials Project

Abstract

TcF4 crystallizes in the orthorhombic Pbca space group. The structure is one-dimensional and consists of four TcF4 ribbons oriented in the (1, 0, 0) direction. Tc4+ is bonded to six F1- atoms to form edge-sharing TcF6 octahedra. There are a spread of Tc–F bond distances ranging from 1.86–2.11 Å. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Tc4+ atom. In the second F1- site, F1- is bonded in a water-like geometry to two equivalent Tc4+ atoms. In the third F1- site, F1- is bonded in a water-like geometry to two equivalent Tc4+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Tc4+ atom.