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Tellurium tetraiodide : ウィキペディア英語版
Tellurium tetraiodide

Tellurium tetraiodide (TeI4) is an inorganic chemical compound. It has a tetrameric structure which is different from the tetrameric solid forms of TeCl4 and TeBr4. In TeI4 the Te atoms are octahedrally coordinated and edges of the octahedra are shared.〔
TeI4 can be prepared from the elements or by reacting Te and iodomethane, CH3I.〔 In the vapour TeI4 dissociates:〔''Inorganic Chemistry'',Egon Wiberg, Arnold Frederick Holleman Elsevier 2001 ISBN 0-12-352651-5〕
:TeI4 → TeI2 + I2
It is a conductor when molten, dissociating into the ions TeI3+ and I. In solvents with donor properties such as acetonitrile, CH3CN ionic complexes are formed which make the solution conducting:〔
:TeI4 + 2 CH3CN → (CH3CN)2TeI3+ + I
==References==



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