ruthenium; carbene; chelate complex; homogeneous catalysis; atom transfer radical polymerization
Abstract :
[en] 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 various para-substituted styrenes. Kinetic data and Hammett rho 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)-yl idene]].
Disciplines :
Chemistry
Author, co-author :
Simal, François
Jan, Dominique
Delaude, Lionel ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie macromoléculaire et catalyse organique
Demonceau, Albert ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie macromoléculaire et catalyse organique
Spirlet, Marie-Rose ; Université de Liège - ULiège > Département de physique > Département de physique
Noels, Alfred ; Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Language :
English
Title :
Evaluation of ruthenium-based complexes for the controlled radical polymerization of vinyl monomers
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