Materials Data on Tl2Cl3 by Materials Project
Tl2Cl3 crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three Tl2Cl3 sheets oriented in the (0, 0, 1) direction. Tl is bonded in a distorted trigonal non-coplanar geometry to six Cl atoms. There are three shorter (2.92 Å) and three longer (3.23 Å) Tl–Cl bond lengths. There are two inequivalent Cl sites. In the first Cl site, Cl is bonded to six equivalent Tl atoms to form distorted edge-sharing ClTl6 octahedra. In the second Cl site, Cl is bonded in a trigonal non-coplanar geometry to three equivalent Tl atoms.
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