Homogeneous Catalysis of the Water Gas Shift Reaction by Bridged Dinuclear Pyrazolate Rhodium Complexes. FT-IR, 1H and 13C NMR In Situ Studies
| 详细信息 | 推荐本文 | |
- 作者：A. J. Pardey ; M. Fern谩ndez ; M. A. Moreno ; J. Alvarez ; A. B. Rivas ; M. C. Ortega ; B. Mendez ; P. J. Baricelli and C. Longo
- 关键词：Rhodium ; pyrazolate ; water gas shift reaction ; carbon monoxide
- 刊名：Reaction Kinetics and Catalysis Letters
- 出版时间：2000
- 出版年：2000
- 期刊代码：31_01331736
- 类别：en
- 卷：70
- 期：2
- 页码：293-301
- 数据来源：sp
摘要
Homogeneous catalysts for the water gas shift reaction prepared from Rh2(-Pz)2(COD)2 (Pz = pyrazolate ion and COD = 1,5-cyclooctadiene) in aqueous organic solvent media (pyridine, 4-picoline or 2-ethoxyethanol) and Rh2(-Pz)2(CO)2(TPPMS)2 (TPPMS = meta-sulfonatophenyl-diphenyldiphosphine) in acidic aqueous media under mild conditions are described. In situ FT-IR, 1H and 13C NMR spectroscopic studies of the Rh2(-Pz)2(COD)2 catalytic system reveal the presence of hydrido-Rh complexes with linear and bridging carbonyls. These complexes also catalyze the reduction of nitrobenzene to aniline.