Materials Data on GaBr2 by Materials Project

Abstract

GaBr2 crystallizes in the trigonal R3c space group. The structure is one-dimensional and consists of nine GaBr2 ribbons oriented in the (0, 0, 1) direction. there are two inequivalent Ga2+ sites. In the first Ga2+ site, Ga2+ is bonded in a 2-coordinate geometry to three Br1- atoms. There are a spread of Ga–Br bond distances ranging from 3.20–3.33 Å. In the second Ga2+ site, Ga2+ is bonded in a tetrahedral geometry to four Br1- atoms. There are a spread of Ga–Br bond distances ranging from 2.36–2.38 Å. There are four inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted single-bond geometry to two Ga2+ atoms. In the second Br1- site, Br1- is bonded in a single-bond geometry to one Ga2+ atom. In the third Br1- site, Br1- is bonded in a single-bond geometry to two Ga2+ atoms. In the fourth Br1- site, Br1- is bonded in a distorted single-bond geometry to two Ga2+ atoms.