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Rhodium nitrosyl catalysts for CO 2 hydrogenation to formic acid under mild conditions
Author(s) -
Zou Fenglou,
Cole Jacqueline M.,
Jones Timothy G. J.,
Jiang Li
Publication year - 2012
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.2898
Subject(s) - rhodium , chemistry , formic acid , catalysis , ligand (biochemistry) , medicinal chemistry , organic chemistry , inorganic chemistry , receptor , biochemistry
A new synthetic protocol for catalysing CO 2 hydrogenation to formic acid under mild conditions is reported, and the CO 2 hydrogenation is efficiently achieved by dcpe‐rhodium‐nitrosyl catalyst precursors, Rh(NO)(dcpe) (1) (dcpe = 1,2‐dicyclohexylphosphinoethane) and Rh(III)(NO)(dcpe)Cl 2 (2). The catalytic activity of 1 is noteworthy for being able to proceed in the absence of protic conditions. Compound 2 is characterized by NMR, IR and X‐ray crystallography. In particular, 2 is observed to bear a bent NO ligand with a Rh–N–O angle of 115.7(3)°, representing one of the smallest M–N–O angles known. Copyright © 2012 John Wiley & Sons, Ltd.