Non-Covalent Interactions in the Crystal Structures of Perbrominated Sulfonium Derivatives of the -Decaborate Anion.

A new series of compounds based on perbrominated disubstituted sulfonium derivatives of the -decaborate anion (-BuN)[2-BBrSR] (R = -Pr, -Pr, -Bu, -CH, -CH, -CH) was obtained, characterised by modern physicochemical methods of analysis. According to the results of an X-ray diffraction study, some of the anions and solvate molecules were disordered. The cations (-BuN) and anions [2-BBrSR] were associated via C-H…Br and H…H contacts.

Synthesis of Perchlorinated Sulfonium Derivatives of -Decaborate Anion [2-BClSR] (R = -CH, -CH, -CH, -CH, -CH, -CH, CHPh, and -S(CH)).

A method for obtaining perchlorinated di-,-substituted derivatives of the -decaborate anion with various alkyl groups has been developed: [BClSR] (R= -CH, -CH, -CH, -CH, -CH, -CH, CHPh, and -S(CH)). The method is based on the preparation of the sulfonium-substituted anion [BHSR] by alkylation of the anion [BHSH] with bromoalkanes (-CHBr, -CHBr, -CHBr, -CHBr, -CHBr, -CHBr, PhCHBr, and BrCH(CH)CHBr) followed by the cluster chlorination with sulfuryl chloride SOCl in acetonitrile. The process proceeds until the hydrogen atoms in the boron cluster are completely replaced with chlorine and completes within 60 h.