About: Dichlorotris(triphenylphosphine)ruthenium(II) is a(n) research topic. Over the lifetime, 35 publication(s) have been published within this topic receiving 3489 citation(s).
01 Sep 1995-Macromolecules
01 Jun 1965-Inorganic Chemistry
02 Jul 1999-Macromolecules
Abstract: 3-Aminopropyl-functionalized silica support (APSS) has been used as a solid support for the heterogeneous atom transfer polymerization of methyl methacrylate (MMA), to poly(methyl methacrylate) (PMMA), mediated by adsorbed RuCl2(PPh3)3 as catalyst. This system displays characteristics of a living radical polymerization as indicated by (i) an increase in the number-average molecular weight (Mn) with conversion, (ii) relatively low polydispersity indexes (PDI), and (iii) linear first-order rate plots. When PMMA of Mn = 20 000 g mol-1 was targeted, the reaction reached 91% conversion after 4 h with a measured Mn = 21 500 g mol-1 and PDI = 1.49. It was found that polymerization of MMA mediated by RuCl2(PPh3)3 in the presence of APSS does not require the addition of an aluminum alkoxide (e.g., Al(OiPr)3) as an activating reagent. The rate of reaction is higher than for similar homogeneous reactions; however, the polydispersity indexes are also higher. The ruthenium content of polymers thus produced is typicall...
01 Jan 1971-Tetrahedron Letters
05 Feb 1985-Journal of Organometallic Chemistry
Abstract: The addition of haloalkanes to alkenes in the presence of [RuCl 2 (PPh 3 ) 3 ] has been subjected to a detailed kinetic study. The results of this study, together with an examination of reaction intermediates, suggest a mechanism inolving a non-chain sequence in which [RuCl 2 (PPh 3 ) 3 ] acts as a catalyst, but which involves free radical intermediates.