Abstract
A series of new molybdenum complexes, [Mo(NNHCOPh){S 2CN(C 2H 5) 2} 3] ( 1), [Mo(NNCOC 6H 4NO 2){S 2CN(C 2H 5) 2} 3] ( 2), [Mo(NNHCOPh){S 2CN(CH 3) 2} 3] ( 3), [Mo(NNCOC 6H 4NO 2){S 2CN(CH 3) 2} 3] ( 4) have been synthesized, with p-nitrobenzoyldiazenido(1-) and benzoylhydrazido(2-) as ligands, and dialkyldithio-carbamatos as coligands. Reactions of these compounds with aqueous and methanolic HCl were carried out but the attempted separation of the aroyl group was unsuccessful. Only the reaction of 1 and 2 with HCl in methanol gave a product, identified as [Mo{S 2CN(C 2H 5) 2} 4][MoCl 4(OCH 3) 2]. The complexes were characterized by elemental analysis, IR spectroscopy, 1H and 13C NMR, and mass spectrometry. Single crystals of 2 were obtained and the crystal structure was determined. The Mo atom is heptacoordinated; one diazenido(1-) and three diethyldithiocarbamatos act as ligands. From the latter one sulfur is in trans-position to the diazenido-nitrogen atom and the other five sulfur atoms lie in a plane giving a distorted pentagonal-bipyramidal coordination.
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