Materials Data on Ga2Te2Br7 by Materials Project

Abstract

Ga2Te2Br7 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four Ga2Te2Br7 clusters. there are two inequivalent Ga+2.50+ sites. In the first Ga+2.50+ site, Ga+2.50+ is bonded to four Br1- atoms to form corner-sharing GaBr4 tetrahedra. There are a spread of Ga–Br bond distances ranging from 2.32–2.49 Å. In the second Ga+2.50+ site, Ga+2.50+ is bonded to four Br1- atoms to form corner-sharing GaBr4 tetrahedra. There are a spread of Ga–Br bond distances ranging from 2.31–2.51 Å. There are two inequivalent Te1+ sites. In the first Te1+ site, Te1+ is bonded in a distorted single-bond geometry to one Br1- atom. The Te–Br bond length is 3.39 Å. In the second Te1+ site, Te1+ is bonded in a single-bond geometry to one Br1- atom. The Te–Br bond length is 3.36 Å. There are seven inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a single-bond geometry to one Ga+2.50+ atom. In the second Br1- site, Br1- is bonded in a single-bond geometry to one Ga+2.50+ atom. In the third Br1- site, Br1- is bonded in a distorted single-bond geometry to one Ga+2.50+ and one Te1+ atom. In the fourth Br1- site, Br1- is bonded in a single-bond geometry to one Ga+2.50+ atom. In the fifth Br1- site, Br1- is bonded in a water-like geometry to two Ga+2.50+ atoms. In the sixth Br1- site, Br1- is bonded in a single-bond geometry to one Ga+2.50+ atom. In the seventh Br1- site, Br1- is bonded in a single-bond geometry to one Ga+2.50+ and one Te1+ atom.