Reactivity of 1-nitroso-2-naphthol towards the carbonyl complexes XRe(CO)5 (X = Cl, Br, I): Molecular structures of cis-[η2-{N,O-C10H6ON(O)}Re(CO) 4] and fac-[η2-{N,O-C10H 6ON(H)}Re(CO)3X]

Christoph Krinninger, Stefan Wirth, Juan C. Galvez Ruiz, Peter Klüfers, Heinrich Nöth, Ingo Peter Lorenz*

*Autor correspondiente de este trabajo

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

7 Citas (Scopus)

Resumen

The halogeno complexes (CO)5ReX (1a-c) (X = Cl, Br, I) react with 1-nitroso-2-naphthol C10H6N(O)OH (2) in refluxing CH2Cl2 to give the substitution product cis-(CO) 4-Re{C10H6ON(O)} (3) via HX and CO elimination in good yield. Compound 3 is coordinated to the Re centre by the bidentate chelate ligand via the N-atom of the nitroso and O-atom of the naphtholato groups. The same reaction in refluxing toluene, however, gave no HX elimination but instead, the fac-(CO)3XRe{C10H6ON(H)} (4-6) complexes are formed, which contain the rare, N,O-chelating ligand 1,2-naphthaquinone-2-imine. The nitroso function of 2 has been reduced to the imine function by an intermolecular redox process, which was confirmed by the detection of CO2 generated during the reaction. The new compounds 3-6 have been characterised by their IR, 1H and 13C NMR, UV/Vis and mass spectra, as well as by X-ray structure analyses. The Re I centres show a distorted octahedral coordination of the CO and X (in 4-6) ligands and the almost planar aromatic (3) or quinoid (4-6) N,O chelating ligands.

Idioma originalInglés
Páginas (desde-hasta)4094-4098
Número de páginas5
PublicaciónEuropean Journal of Inorganic Chemistry
N.º20
DOI
EstadoPublicada - 21 oct 2005

Huella

Profundice en los temas de investigación de 'Reactivity of 1-nitroso-2-naphthol towards the carbonyl complexes XRe(CO)<sub>5</sub> (X = Cl, Br, I): Molecular structures of cis-[η<sup>2</sup>-{N,O-C<sub>10</sub>H<sub>6</sub>ON(O)}Re(CO) <sub>4</sub>] and fac-[η<sup>2</sup>-{N,O-C<sub>10</sub>H <sub>6</sub>ON(H)}Re(CO)<sub>3</sub>X]'. En conjunto forman una huella única.

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