Carbon dioxide reduction by mononuclear ruthenium polypyridyl complexes

Nora Planas, Takashi Ono, Lydia Vaquer, Pere Miró, Jordi Benet-Buchholz, Laura Gagliardi, Christopher J. Cramer, Antoni Llobet

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

New mononuclear ruthenium complexes with general formula [Ru(bid)(B)(Cl)] (bid is (1Z,3Z)-1,3-bis(pyridin-2-ylmethylene)isoindolin-2-ide; B = bidentate ligand 2,2′-bipyridine or R2-bpy, where R = COOEt or OMe) were synthesized and tested as precatalysts for the hydrogenative reduction of CO2 in 2,2,2-trifluoroethanol (TFE) as solvent with added NEt3. Significant amounts of formic acid were produced by these catalysts and a kinetic analysis based on initial rate constants was carried out. The potential mechanisms including intermediate species for these catalytic systems were investigated by means of quantum chemical calculations to gain deeper insight into the processes. The effect of electron-donating and electron-withdrawing groups on catalyst performance was studied both experimentally and theoretically.

Original languageEnglish (US)
Pages (from-to)19480-19484
Number of pages5
JournalPhysical Chemistry Chemical Physics
Volume13
Issue number43
DOIs
StatePublished - Jan 1 2011

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