"Evaluation of Ruthenium-Based Complexes for the Controlled Radical Polymerization of Vinyl Monomers"

François Simal, Dominique Jan, Lionel Delaude, Albert Demonceau, Marie-Rose Spirlet, and Alfred F. Noels

journal cover 
          source: Canadian Journal of Chemistry
            year: 2001
          volume: 79
      first page: 529
       last page: 535
             doi: 10.1139/cjc-79-5-6-529
graphical abstract

Abstract: New complexes of the type RuCl2(p-cymene)L where the ligand L is either a phosphine or a stable triazolinylidene carbene have been tested and compared to the Grubbs' benzylidene complex RuCl2(=CHPh)(PCy3)2 as catalyst precursors for the controlled Atom Transfer Radical Polymerization (ATRP) of methyl methacrylate and of different para-substituted styrenes. Kinetic data and Hammett r constants are reported, as well as the X-ray structure of the ortho-metallated triazolinylidene-ruthenium(II) complex RuCl(p-cymene)[1,2-phenylene[3,4-diphenyl-1H-1,2,4-triazol-1-yl-5(4H)-ylidene]].

Keywords: Ruthenium, Carbene, Chelate Complex, Homogeneous Catalysis, Atom Transfer Radical Polymerization

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