A kinetic investigation of carbon dioxide insertion processes involving anionic tungsten-alkyl and -aryl derivatives: effects of carbon dioxide pressure, counterions, and ancillary ligands. Comparisons with migratory carbon monoxide insertion processes

Abstract

A mechanistic investigation of the 1,2-addition of carbon dioxide to tungsten-alkyl and -aryl derivatives, namely

A concise review of computational studies of the carbon dioxide–epoxide copolymerization reactions

“…83 This is consistent with our understanding that CO 2 insertion does not involve its prior coordination to the metal center, based on experimental kinetics studies. [84][85][86][87][88][89] Preliminaries aside, the rst theoretical examination of the CO 2 -epoxide copolymerization catalyzed by (salen)M(III) complexes was performed by Luinstra et al in 2005. This older study made use of a minimal salen-like ligand for computational efficiency that was found to give results equivalent to the full salen complex.…”

Ligand and solvent effects on CO2 insertion into group 10 metal alkyl bonds

“…Although the inuence of these factors on CO 2 insertion into metal hydrides has been studied, 5 there is limited information on how these variables affect CO 2 insertion into metal alkyl bonds. [6][7][8][9][10][11][12][13] These reactions are particularly important because they can result in the generation of products containing C-C bonds from CO 2 , which has been identied as a high priority research target by the United States National Academies of Science. 2 For example, group 10 catalysts have been used for the reductive carboxylation of a variety of alkyl halides and pseudo halides.…”

In situ FTIR spectroscopic study of the CO2methanation mechanism on Ni/Ce0.5Zr0.5O2

“…[8][9][10] The supports also include Al 2 O 3 , TiO 2 , SiO 2 , ZrO 2 , TiO 2 and CeO 2 . [4][5][6][7][8][9][10][11][12] Although the reaction mechanism of CO 2 methanation has also been investigated, there are still arguments on the nature of the intermediate compound involved in the process and on the methane formation scheme. The reaction mechanisms have been classified into two main categories.…”