Repositorio de producción científica de la Universidad de Sevilla

Bis(ethylene) complexes of molybdenum-and tungsten-(0) containing the CH3C(CH2PMe2)3 ligand: synthesis, solution conformation and reactivity

Opened Access Bis(ethylene) complexes of molybdenum-and tungsten-(0) containing the CH3C(CH2PMe2)3 ligand: synthesis, solution conformation and reactivity
Estadísticas
Icon
Exportar a
Autor: Pastor Navarro, Antonio
Galindo del Pozo, Agustín
Departamento: Universidad de Sevilla. Departamento de Química Inorgánica
Fecha: 1997
Publicado en: Journal of the Chemical Society, Dalton Transactions, 20, 3749-3754
Tipo de documento: Artículo
Resumen: The reaction of trans-[M(C2H4)2(PMe3)4] with the tripodal phosphine 1,1,1-tris[(dimethylphosphino)methyl]- ethane (CP3) affords complexes trans-[M(C2H4)2(h2-CP3)(PMe3)2] (M = Mo 1a or W 1b). A detailed NMR study, including hetero- and homo-nuclear two-dimensional correlations, has been carried out for 1b which allows a complete assignment of signals and a structural spectroscopic determination. In solution, no ethylene rotation is observed at room temperature and the preferential conformer of the six-membered ring W[h2-CH3C(CH2PMe2)3] fragment is, on the basis of steric arguments, the skew-boat conformation. Interaction of compounds 1 with CO affords trans-[M(C2H4)2(h2-CP3)(CO)(PMe3)] (M = Mo 2a or W 2b), while reaction of 1a with CNBut furnishes the compound trans-[Mo(C2H4)2(h2-CP3)(CNBut)(PMe3)] 3. The bidentate co-ordination of CP3 induces chirality at the metal center and compounds 2 and 3 are obtained as a ca. 1 : 1 mixture of diastereoisomers, identified by the presence of two d...
[Ver más]
Cita: Pastor Navarro, A. y Galindo del Pozo, A. (1997). Bis(ethylene) complexes of molybdenum-and tungsten-(0) containing the CH3C(CH2PMe2)3 ligand: synthesis, solution conformation and reactivity. Journal of the Chemical Society, 20, 3749-3754.
Tamaño: 145.7Kb
Formato: PDF

URI: http://hdl.handle.net/11441/28060

Ver versión del editor

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional

Este registro aparece en las siguientes colecciones