Homogeneous catalysis of the water gas shift reaction by bridged dinuclearpyrazolate rhodium complexes. FT-IR, H-1 and C-13 NMR in situ studies

Authors
Pardey, AJ Fernandez, M Moreno, MA Alvarez, J Rivas, AB Ortega, MC Mendez, B Baricelli, PJ Longo, C
Citation
Aj. Pardey et al., Homogeneous catalysis of the water gas shift reaction by bridged dinuclearpyrazolate rhodium complexes. FT-IR, H-1 and C-13 NMR in situ studies, REACT KIN C, 70(2), 2000, pp. 293-301
Citations number
31
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
REACTION KINETICS AND CATALYSIS LETTERS
ISSN journal
01331736 → ACNP
Volume
70
Issue
2
Year of publication
2000
Pages
293 - 301
Database
ISI
SICI code
0133-1736(200007)70:2<293:HCOTWG>2.0.ZU;2-#
Abstract
Homogeneous catalysts for the water gas shift reaction prepared from Rh-2(m u -Pz)(2)(COD)(2) (Pz = pyrazolate ion and COD = 1,5-cyclooctadiene) in aqu eous organic solvent media (pyridine, 4-picoline or 2-ethoxyethanol) and Rh -2(mu -Pz)(2)(CO)(2)(TPPMS)(2) (TPPMS meta-sulfonatophenyl-diphenyldiphosph ine in acidic aqueous media under mild conditions are described. bz situ FT -IR, H-1 and C-13 NMR spectroscopic studies of the Rh-2(mu -Pz)(2)(COD)(2) catalytic system reveal the presence of hydrido-Rh complexes with linear an d bridging carbonyls. These complexes also catalyze the reduction of nitrob enzene to aniline.