摘要:
                                The reaction of symmetrical dinucleating ligands 3,5-bis(4-methoxyphenyliminoacetyl)-4-methylpyrazole (bmimpH, 1a) and 3,5-bis(2,6-dimethylphenyliminoacetyl)-4-methylpyrazole (bdmimpH, 1b) with [(mu-Me2S)PtMe2](2) or (Me2S)(2)PtPh2 affords selectively mononuclear complexes LPtMe(SMe2) or LPtPh(SMe2) (L = bmimp, bdmimp). Reaction of these complexes with CuCl gives access to ionic compounds {[LPtMe(SMe2)](2)Cu+CuCl2- and [LPtPh(SMe2)](Cu+CuCl2-)-Cu-2, which exhibit dynamic behavior in solution for L = bdmimp. Ligand deprotonation followed by reaction with (Me2S)(2)PtPh2 affords mononuclear anionic complexes K+[LPtPh2](-). These react with CuCl to give dimeric structures of formula {[LPtPh2](2)Cu-2}, which exhibit Pt -> Cu dative bonds and a Cu-Cu contact, and dynamic behavior in solution.