Repositorio de producción científica de la Universidad de Sevilla

Synthesis, characterization and structure of nickel and copper compounds containing ligands derived from keto-enehydrazines and their catalytic application for aerobic oxidation of alcohols

Opened Access Synthesis, characterization and structure of nickel and copper compounds containing ligands derived from keto-enehydrazines and their catalytic application for aerobic oxidation of alcohols

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Gaona, Miguel Ángel
Montilla Ramos, Francisco Javier
Álvarez, Eleuterio
Galindo del Pozo, Agustín
Departamento: Universidad de Sevilla. Departamento de Química Inorgánica
Fecha: 2015
Publicado en: Dalton Transactions, 44 (14), 6516-6525.
Tipo de documento: Artículo
Resumen: Ligand precursors HLR,Ph (R = Me, Ph) were synthesised by condensation of acetylacetone and the corresponding N,N-substituted hydrazines and were characterised spectroscopically and structurally. Both in the solid state and in solution they behave as (Z)-keto-enehydrazines and this was confirmed by DFT calculations which showed that this form was the most stable of their possible tautomers. The reaction of HLR,Ph compounds with copper acetate and nickel acetate in EtOH afforded the corresponding complexes [M(LR,Ph)2] (M = Cu, Ni; R = Me, Ph). The methyl-substituted derivatives were structurally characterised by X-ray methods. A four-coordinate environment around the metal centre, where the two LMe,Ph ligands act as bidentate N,O-chelators and lie in a pseudo-trans conformation, was found for both compounds. The dihedral angle between the two six-membered metallacycles M(LMe,Ph) was 0° for nickel, a typical square planar coordination, meanwhile it was 23° for copper, a square plana...
[Ver más]
Cita: Gaona, M.Á., Montilla Ramos, F.J., Álvarez, E. y Galindo del Pozo, A. (2015). Synthesis, characterization and structure of nickel and copper compounds containing ligands derived from keto-enehydrazines and their catalytic application for aerobic oxidation of alcohols. Dalton Transactions, 44 (14), 6516-6525.
Tamaño: 585.4Kb
Formato: PDF

URI: http://hdl.handle.net/11441/42610

DOI: 10.1039/c5dt00358j

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