摘要:
Three mixed-ligand terpyridine-thiolate Pt-II complexes containing 2,2':6',2"-terpyridine (tpy) and para-substituted thiophenolate ions, [(tpy)Pt(SC6H4-4-X)]BF4 (X = NMe2, H, NO2) were synthesized. The complexes were isolated as chlorides or tetrafluoroborates and characterized by electrochemistry, visible electronic spectroscopy and H-1 NMR spectroscopy, and elemental analysis. Remarkable influence of the electron-donating/withdrawing properties of the substituent in the thiolate ligand on the physicochemical properties of the complexes, in particular, on the electrochemical reduction potentials, was found. The reduced forms of the complexes undergo electrochemically initiated alkylation with alkyl halides, resulting in the formation of Pt alkyl compounds.