SÍNTESE E CARACTERIZAÇÃO DE NOVOS ORGANOMETÁLICOS DE ESTANHO (IV) COM LIGANTES DITIOCARBIMATOS E SUA AÇÃO ACCELERADORA NA VULCANIZAÇÃO DE BORRACHA NITRÍLICA

This paper describes the synthesis of four new organotin compounds of general formula: (Ph4P)[Sn(Cy)3(RSO2N=CS2)] [Ph4P = tetraphenylphosphonium cation, Cy = cyclohexyl, R = C6H5 (1), 4-ClC6H4 (2), 4-BrC6H4 (3) and 4-IC6H4 (4)]. They were obtained by the reaction between four different potassium N-R-sulfonyldithiocarbimate salts and tricyclohexyltin chloride in methanol, and were isolated as tetraphenylphosphonium salts. The elemental analyses of C, H, N and the data of high-resolution mass spectrometry were consistent with the proposed formulae. The 119Sn NMR spectra and 119Sn Mössbauer spec...