3 years ago

Salts of Sterically-Hindered Chalcogen-Varied Herz Cations Including Those with New Anions [Te3Cl14]2- and [Te4Cl18]2-

Alexander Yurievich Makarov, Andrey V. Zibarev, Irina Yu. Bagryanskaya, Makhmut M. Shakirov, Yulia M. Volkova
Salts of sterically-hindered chalcogen-varied Herz cations with various anions were synthesized. 4,6-Di-tert-butyl-substituted 1,2,3-benzothiaselenazolium (2), 2,1,3-benzothiaselenazolium (3) and 1,2,3-benzodiselenazolium (4) were obtained from corresponding 1,2,3-benzodithiazolium (1) or 2-bromo-4,6-di-tert-butylaniline (9) and isolated in the form of salts with [Cl]- or / and [SbCl6]-. Reactions of prepared in situ N,N,Te-tris(trimethylsilyl)-2-amino-3,5-di-tert-butyltellurophenole with SeCl4, S2Cl2 or SOCl2 resulted in elimination of Te and formation of salts [4]2[TeCl6], [1]2[Te3Cl14] and [1]2[Te4Cl18] together with N-sulfinyl-2-amino-3,5-di-tert-butylphenyltellurium trichloride 11; expected 2,1,3-benzothiatellurazolium (5) and 2,1,3-benzoselenatellurazolium (6) were not observed. Compounds [1][Cl] (solvate with CHCl3), [2][SbCl6], [3][SbCl6], [4][SbCl6], [4]2[TeCl6], [1]2[Te3Cl14], [1]2[Te4Cl18] and 11 were structurally defined by X-ray diffraction. All [SbCl6]- salts were isomorphous, anions [Te3Cl14]2- and [Te4Cl18]2- were previously unknown. Compound 11 revealed significantly shortened intramolecular contact Te…O.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/ejic.201701470

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