Preparation and characterization of new cycloplatinated carbene complexes |
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| Authors: | Katsuma Hiraki Masayoshi Onishi Kohji Ohnuma Keiichi Sugino |
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| Affiliation: | Department of Industrial Chemistry, Faculty of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852 Japan |
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| Abstract: | Reaction of iodotrimethylplatinum(IV) tetramer with bis(1,3-diphenyl-2-imidazolidinylidene) [(Hdpim)2] gave a new dinuclear carbene complex, [{Pt(dpim)I}2](dpim 1,3-diphenyl-2-imidazolidinylidenato-2-C,2′-C), III, in 84% yield, which contains a cycloplatinated carbene structure. Some mononuclear derivatives, [Pt(dpim)(acac)], [Pt(dpim)I{P(OCHMe2)3}], [Pt(dpim)-(NCCH3)2]ClO4, and [Pt(dpim)(COD)]ClO4 were prepared from III and characterized by means of elemental analysis, IR and NMR spectroscopy, and molar conductivity. An intermediate species, [{PtMeI(Hdpim)}2], leading to III is discussed also. |
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