Аннотация:Abstract: Three new Pt(II) complexes [(dpp-DAD)PtCl2] (I), [(Mes-DAD(Me)2)PtCl2] (II) and [(dpp-DAD(Me)2)PtCl2] (III) were synthesized by the direct reaction of [(CH3CN)2PtCl2] and correspondingredox-active 1,4-diaza-1,3-butadienes (DAD). The compounds were isolated in a single crystal formand their molecular structures were determined by X-ray diffraction. The purity of the complexesand their stability in solution was confirmed by NMR analysis. The Pt(II) ions in all compoundsare in a square planar environment. The electrochemical reduction of complexes I–III proceeds intwo successive cathodic stages. The first quasi-reversible reduction leads to the relatively stablemonoanionic complexes; the second cathodic stage is irreversible. The coordination of 1,4-diaza-1,3-butadienes ligands with PtCl2 increases the reduction potential and the electron acceptor ability ofthe DAD ligands. The synthesized compounds were tested in relation to an adenocarcinoma of theovary (SKOV3).
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