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The Crystal Structure of Tl 2 Te 3 – a Reinvestigation
Author(s) -
Doert Th.,
CardosoGil R.,
Böttcher P.
Publication year - 1999
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199912)625:12<2160::aid-zaac2160>3.0.co;2-j
Subject(s) - crystallography , tellurium , chemistry , crystal structure , stereochemistry , lattice constant , physics , diffraction , inorganic chemistry , optics
Crystals of the title compound were obtained by annealing a powder of Tl 2 Te 3 in a vertical temperature gradient (230 °C–240 °C, 4 weeks). Tl 2 Te 3 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 ∞ 1 [Te 3 2– ], consisting of interconnected linear triatomic · Te–^Te–Te · groups which are isosteric with XeF 2 . The Te–Te distances of the XeF 2 ‐like units are 3.02 Å, the connecting ones 2.83 Å.