New Rh derivatives of s-indacene active in dehydrogenative silylation of styrene

Esponda, E; Adams C.; Burgos F.; Chavez, I; Manriquez, JM; Delpech, F; Castel A; Gornitzka, H; Riviere-Baudet, M; Riviere, P

Abstract

The mono- and bimetallic complexes [(2,6-diethyl-4,8-dimethyl-s-indacenide){Rh(COD)}] (1), anti-[(2,6-diethyl-4,8-dimethyl-s-indacenediide){Rh(COD)}2] (2a), syn-[(2,6-diethyl-4,8-dimethyl-s-indacenediide){Rh(COD)}2] (2b) were synthesized and characterized spectroscopically and in the case of complex 2b, by means of X-ray diffraction. The 13C and 103Rh NMR studies suggest that the bonding mode of the indacenediide ligand can be described as intermediate between η3- and η5-coordination. This result was confirmed by the crystal structure of 2b as evidenced by the slippage of the rhodium atom towards the periphery of the ligand. Cyclic voltammetry studies revealed a strong intermetallic communication through the fused ring ligand. This property was further illustrated by higher activity and selectivity of binuclear complexes 2 for the catalytic dehydrogenative silylation of styrene. © 2006 Elsevier B.V. All rights reserved.

Más información

Título según WOS: New Rh derivatives of s-indacene active in dehydrogenative silylation of styrene
Título según SCOPUS: New Rh derivatives of s-indacene active in dehydrogenative silylation of styrene
Título de la Revista: JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volumen: 691
Número: 13
Editorial: ELSEVIER SCIENCE SA
Fecha de publicación: 2006
Página de inicio: 3011
Página final: 3017
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0022328X06002208
DOI:

10.1016/j.jorganchem.2006.03.009

Notas: ISI, SCOPUS