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Carbon Dioxide Reduction Catalyzed by Dinuclear Ruthenium Polypyridyl Complexes
Author(s) -
Ono Takashi,
Planas Nora,
Miró Pere,
Ertem Mehmed Z.,
EscuderoAdán Eduardo C.,
BenetBuchholz Jordi,
Gagliardi Laura,
Cramer Christopher J.,
Llobet Antoni
Publication year - 2013
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201300372
Subject(s) - ruthenium , catalysis , chemistry , formic acid , amine gas treating , triethylamine , medicinal chemistry , solvent , carbon dioxide , organic chemistry
Dinuclear ruthenium complexes [(Ru(bid)) 2 (μ‐bpp)(μ‐OAc)] and [(Ru(trpy)) 2 (μ‐bpp)(μ‐X)] 2+ [X=Cl − , OAc − , and OCHO − ; bpp=3,5‐bis(2‐pyridyl)pyrazolato; bid − =(1 Z ,3 Z )‐1,3‐bis(pyridin‐2‐ylmethylene)isoindolin‐2‐ide; trpy=2,2':6',2“‐terpyridine] were tested as catalysts for the hydrogenative reduction of carbon dioxide in the solvent 2,2,2‐trifluoroethanol in the presence of excess amine (triethylamine). Significant amounts of formic acid were produced by these catalysts, and a kinetic analysis based on initial rate constants was performed. These catalytic systems were investigated by using DFT calculations to elucidate the hydrogenative reduction mechanism. The results are compared with those obtained with previously reported mononuclear catalyst counterparts.