Abstract: | Crystals of the title compound were obtained by annealing a powder of Tl2Te3 in a vertical temperature gradient (230 °C–240 °C, 4 weeks). Tl2Te3 crystallizes in space group C2/c with lattice parameters of a = 13.275(1) Å, b = 6.562(1) Å, c = 7.918(1) Å, and β = 107.14°(2). The tellurium atoms form chains Te32–], consisting of interconnected linear triatomic · Te–^Te–Te · groups which are isosteric with XeF2. The Te–Te distances of the XeF2-like units are 3.02 Å, the connecting ones 2.83 Å. |