2,4,6-Triphenylphenyltellurium(IV) triiodide - supramolecular self-assembling in organotellurium triiodides |
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Authors: | Gabriela N. Ledesma Ulrich Abram |
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Affiliation: | a Departamento de Quimica, Universidade Federal de Santa Maria, Santa Maria-RS, 97111.970, Brazil b Institut für Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany |
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Abstract: | 2,4,6-Triphenylphenyltellurium(IV) triiodide, (2,4,6-Ph3C6H2)TeI3, can be obtained by the reaction of the corresponding ditelluride {(2,4,6-Ph3C6H2)Te}2 with iodine under an atmosphere of dry nitrogen in toluene. The apparent bisphenoidal coordination sphere of the central tellurium atom is extended by the presence of intermolecular Te?I and I?I secondary bonds which form chains along the crystallographic a axis. Weak intramolecular interactions with one of the phenyl rings of the (2,4,6-Ph3C6H5) unit completes the pseudo-octahedral coordination geometry around each tellurium atom. A comparison of the structure of (2,4,6-Ph3C6H2)TeI3 with the bonding situations in other organotellurium(IV) triiodides suggests a strong dependence of the formation of supramolecular assemblies on the nature of the organic substituents. |
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Keywords: | Organotellurium triiodide Secondary interactions X-ray structure |
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