Heterodinuclear TiMo and TiW complexes bridged by the (dimethylsilanediyl) dicyclopentadienyl ligand
Identificadores
Enlace permanente (URI): http://hdl.handle.net/10017/4281DOI: 10.1016/S0277-5387(97)00494-4
ISSN: 0277-5387
Editor
Pergamon
Fecha de publicación
1998Patrocinadores
Comunidad Autónoma de Madrid
Cita bibliográfica
Polyhedron, 1998, v.17, n.7, p.1081-1089
Palabras clave
Heterodinuclear complexes
Titanium-molybdenum
Titanium-tungsten
Cyclopentadienyl
Proyectos
PB-920178C (Ministerio de Educación y Cultura)
I+D 0033/94 (Comunidad Autónoma de Madrid)
Tipo de documento
info:eu-repo/semantics/article
Versión
info:eu-repo/semantics/publishedVersion
Versión del editor
http://dx.doi.org/10.1016/S0277-5387(97)00494-4Derechos
© Elsevier, 1998
Derechos de acceso
info:eu-repo/semantics/openAccess
Resumen
Reactions of the tricarbonyl-molybdenum and -tungsten complexes [M(CO)3(MeCN)3] (M = Mo, W or [Mo(CO)3(mesitylene)] with equimolar amounts of [Ti(η5-Cp′){(η5-C5H3)(SiMe2)2 (C5H4)}Cl2] (Cp′ = C5H5, C5Me5) lead to the heterodinuclear compounds [Ti(η5-Cp′)Cl2{μ-[(SiMe2)2(η5-C5H3)2]}MH(CO)3]. These dinuclear complexes are isolated as single cis- and trans-isomers or as mixtures of both depending on the starting complex and the reaction conditions. The molar ratio of the two resulting isomers is controlled by thermodynamic and kinetic factors which prevent the application of stereoselective methods for some of the products. Reaction of the hydrido cis- and trans-complexes with CCl4 in CH2Cl2 allows the isolation of chloro complexes [Ti(η5-Cp′)Cl2{μ-[(SiMe2)2(η5-C5H3)2]} MCl(CO)3] of the same configuration. All of the new heterodinuclear compounds reported were characterized by their analytical composition, IR and NMR spectroscopy and the molecular structure of cis-[Ti(η5-C5Me5)Cl2{μ-[(SiMe2)2(η5-C5H3)2]}WH(CO)3] was studied by X-ray diffraction methods.
Ficheros en el ítem
Ficheros | Tamaño | Formato |
|
---|---|---|---|
161.pdf | 684.9Kb |
![]() |
Ficheros | Tamaño | Formato |
|
---|---|---|---|
161.pdf | 684.9Kb |
![]() |
Colecciones
- QUIMINOR - Artículos [186]