Materials Data on TlBr2 by Materials Project
TlTlBr4 is Iron carbide-like structured and crystallizes in the orthorhombic Pnna space group. The structure is zero-dimensional and consists of four thallium molecules and four TlBr4 clusters. In each TlBr4 cluster, Tl is bonded in a tetrahedral geometry to four Br atoms. There are two shorter (2.63 Å) and two longer (2.64 Å) Tl–Br bond lengths. There are two inequivalent Br sites. In the first Br site, Br is bonded in a single-bond geometry to one Tl atom. In the second Br site, Br is bonded in a single-bond geometry to one Tl atom.
36 MATERIALS SCIENCE↗