Elsevier

Polyhedron

Volume 15, Issue 9, May 1996, Pages 1453-1458
Polyhedron

A novel mixed ligand Te(IV) complex comprising three halides and a dithiocarbamate; synthesis and crystal structure of triiododiethyldithiocarbamatotellurium(IV), Te{(C2H5)2NCS2}I3

https://doi.org/10.1016/0277-5387(95)00407-6Get rights and content

Abstract

The title compound TeIVLI3 [L = diethyldithiocarbamate, (C2H5)2NCS2], is the first example of a mixed halide-dithiocarbamate complex of TeIV with halide to a dithiocarbamate ratio of 3:1. Two different methods have been employed for the preparation of this compound. The first method involves the ligand exchange reaction between TeL2 and TeI4. The second method is the oxidative addition of iodine on TeIILI. The structure of the title compound has been determined and it is found to be polymeric with iodine being the bridging ligand. The polymer is made up of interlinking of edge-sharing pentagonal bipyramidal dimers, which are stacked along a axis of the triclinic unit cell. The three TeI distances are TeI (1) 2.982 (1), TeI (2) 2.90 (1) and TeI (3) 2.872 (1) Å, and together with two TeS and two intermolecular TeI interactions complete the seven coordination with a distorted pentagonal bipyramidal geometry around each tellurium.

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