Abstract
The reactions of triphenylantimony(V) catecholates (Cat)SbPh3 with different tetraalkyl-ammonium salts (bromides, iodides, hydroxide anions) in acetonitrile were investigated, and their complexes 8–13 of the general formula [R4N]+[(Cat)SbPh3X]− were synthesized. The molecular structure of complex 8 was determined by X-ray diffraction. The electrochemical oxidation of complexes 8–13 proceeds more easily than the oxidation of the starting catecholates (Cat)SbPh3. The coordination of the bromide anion results in the stabilization of the oxidized forms of the complexes [(SQ)SbPh3X]0 and [(Q)SbPh3X]+ (SQ and Q are the o-benzosemiquinone and o-benzoquinone forms of the redox-active ligand, respectively).
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 0923–0929, April, 2014.
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Poddel’skii, A.I., Ilyakina, E.V., Smolyaninov, I.V. et al. Complexes of triphenylantimony(v) catecholates with ammonium salts. Spectroscopic and electrochemical investigations. Russ Chem Bull 63, 923–929 (2014). https://doi.org/10.1007/s11172-014-0529-3
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DOI: https://doi.org/10.1007/s11172-014-0529-3