Data/hora: 10/06/2024 03:31:50

Biblioteca(s): 	Embrapa Milho e Sorgo.	
Data corrente: 	24/09/2009	
Data da última atualização: 	23/05/2018	
Autoria: 	RIBEIRO, P. E. A.; DONNICI, C. L.; SANTOS, E. N. dos.	
Afiliação: 	PAULO EDUARDO DE AQUINO RIBEIRO.	
Título: 	Cationic rhodium (I) complexes containing 4,4,'-disubstituted 2,2,'-bipyridines: a systematic variation on electron density over the metal centre.	
Ano de publicação: 	2006	
Fonte/Imprenta: 	Journal of Organometallic Chemistry, v. 691, p. 2037-2043, 2006.	
Idioma: 	Inglês	
Conteúdo: 	A series of [Rh(COD)(X2-bipy)]BF4 complexes (COD = 1,5-cyclooctadiene; X2-bipy = 4,4'-disubstituted 2,2'-bipyridines; X = OCH3, CH3, H, Cl or NO2) has been prepared from [Rh(COD)Cl]2. The complexes for X = OCH3, Cl and NO2 have not been described previously in the literature. All complexes have been characterised by elemental analysis, IR, 1H NMR and UV?Vis spectrometry. This series of complexes presents a wide variation on electron density over the metal centre with virtually no variation on its steric environment which discloses interesting possibilities for catalytic and electro-catalytic studies. A preliminary evaluation of these complexes on the hydroformylation of camphene and ß-pinene showed that under the rather drastic conditions employed the complexes acted as a precursor for [Rh(CO)3H], which accounts for most of the catalytic activity.	
Palavras-Chave: 	Cationic rhodium(I) complexes; Hydroformylation; Rhodium catalysts; Substituted bipyridine.	
Categoria do assunto: 	W Química e Física	
Registro original: 	Embrapa Milho e Sorgo (CNPMS)	
Exemplares: 	CNPMS - (21833-1) - ADD - AP - DD -  -  -  - DIS