1. Water gas shift reaction and nitrobenzene reduction catalysis by tetracarbonyldi-μ-chlorodirhodium(I) complex immobilized on poly(4-vinylpyridine)
- Author
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M. Fernández, Angel B. Rivas, Caribay Urbina, Marta Mediavilla, Pablo J. Baricelli, Clementina Longo, Marisol C. Ortega, Delfín Moronta, Sergio A. Moya, and Alvaro J. Pardey
- Subjects
Aqueous solution ,chemistry.chemical_element ,Photochemistry ,Water-gas shift reaction ,Catalysis ,law.invention ,Rhodium ,Inorganic Chemistry ,Nitrobenzene ,chemistry.chemical_compound ,chemistry ,law ,Pyridine ,Materials Chemistry ,Physical and Theoretical Chemistry ,Electron paramagnetic resonance ,Carbon monoxide ,Nuclear chemistry - Abstract
The preparation, characterization and catalytic properties of Rh 2 (CO) 4 Cl 2 immobilized on poly(4-vinylpyridine) are reported. The polymer-immobilized Rh catalyst in contact with 80% aqueous 2-ethoxyethanol is active for the water gas shift reaction and nitrobenzene reduction to azoxybenzene under carbon monoxide at 100 °C. The polymer-immobilized Rh complex was found to be reusable. The Rh complex was coordinatively bonded to the pyridine groups of the organic polymer as suggested by UV–Vis/diffuse reflectance (UV–Vis/DR), Fourier transform infrared (FT-IR), and electron paramagnetic resonance (EPR) spectroscopies. The morphology and the elemental analysis of the immobilized catalyst were studied by scanning electron microscopy–energy dispersive X-ray (SEM–EDX) technique.
- Published
- 2002
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