Electrochemical synthesis and crystal structure of silver(I) complexes with some heterocyclic thiones
Abstract
Two silver(I) complexes, [{Ag(SR)}6][R1SH = 6-(tert-butyldimethylsilyl)pyridine-2-thione 1, R2SH = 3,6-bis(tert-butyldimethylsilyl)pyridine-2-thione 2], have been synthesized by electrochemical oxidation of the metal in an acetonitrile solution of the neutral heterocyclic thiones. The reaction of equimolar amounts of dppm [bis(diphenylphosphino)methane] with complexes 1 and 2 in dichloromethane resulted in the formation of [Ag4Cl4(dppm)2]3 and the elimination of RSCH2SR. Single-crystal X-ray analyses were performed for compounds 1, 3 and R2SCH2SR2.