Chemistry of vinylidene complexes—XXVII—new µ-vinylidene MnPt complexes with platinum-coordinated 1-adamantyl isocyanide ligand: spectroscopic, structural and electrochemical study
Transition Metal Chemistry(2022)
Abstract
New binuclear MnPt µ-vinylidene complexes Cp(CO) 2 Mn(µ-C=CHPh)Pt(CN–Ad)(L) [L=PPh 3 ( 1a ), P(OPr i ) 3 ( 2a )] bearing a terminal platinum-coordinated 1-adamantyl isocyanide ligand were prepared by the treatment of Cp(CO) 2 Mn(µ-C=CHPh)Pt(CO)(L) [L=PPh 3 ( 1b ), P(OPr i ) 3 ( 2b )] with CN-Ad. At the same time the reaction between Cp(CO) 2 Mn(µ-C=CHPh)Pt(L) 2 [L=PPh 3 ( 1c ), P(OPr i ) 3 ( 2c )] and CN-Ad did not proceed. The new complexes were characterized by IR and 1 H, 13 C, 31 P NMR spectroscopy. The molecular structure of Cp(CO) 2 Mn(µ-C=CHPh)Pt(CN–Ad)[P(OPr i ) 3 ] ( 2a ) was determined by an X-ray diffraction study. The redox properties of the new complexes and their reactions of chemical oxidation were studied. An influence of the platinum-coordinated 1-adamantyl isocyanide ligand on the properties of the synthesized µ-vinylidene compounds 1a and 2a was revealed.
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Key words
vinylidene complexes—xxvii—new,mnpt complexes—xxvii—new,ligand,platinum-coordinated
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