Artículo
Mono- and Dinuclear Complexes of Tricarbonylrhenium(I) with 4-Methyl-2,2′-bipyridine-4′-carbonitrile
Mecchia Ortiz, Juan Hugo
; Moran Vieyra, Faustino Eduardo
; Borsarelli, Claudio Darío
; Romero, Isabel; Fontrodona, Xavier; Parella, Teodor; Lis, Noemi Dora; Fagalde, Florencia
; Katz, Néstor Eduardo
Fecha de publicación:
06/2014
Editorial:
Wiley VCH Verlag
Revista:
European Journal of Inorganic Chemistry
ISSN:
1434-1948
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Novel mono- and dinuclear tricarbonylrhenium(I) complexes of formula [Re(Mebpy-CN)(CO)3Cl] (1), [Re(Mebpy-CN)(CO)3(CH3CN)](PF6) (2), and [(CH3CN)(CO)3Re(Mebpy-CN)Ru(NH3)5](PF6)3 (3), in which Mebpy-CN = 4-methyl-2,2′-bipyridine-4′-carbonitrile, were prepared and characterized by spectroscopic, photophysical, and computational techniques. The complete structure of complex 2 was determined by X-ray diffraction. The increased conjugation in the bipyridyl ring owing to the nitrile substituent increases the emission quantum yields of the 3MLCT (metal-to-ligand charge-transfer) lowest-lying excited states of 1 and 2 with respect to the corresponding bpy complexes (bpy = 2,2′-bipyridine). The mixed-valent species of formula [(CH3CN)(CO)3Re(Mebpy-CN)Ru(NH3)5]4+ (4) was prepared in situ and as a mixed salt; the charge recombination from its metal-to-metal charge-transfer (MMCT) excited state is predicted to lie in the Marcus inverted region. The electronic structures and optical properties of all the reported complexes calculated by DFT and TD-DFT methods agree reasonably well with experimental results.
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Colecciones
Articulos(INQUINOA)
Articulos de INST.DE QUIMICA DEL NOROESTE
Articulos de INST.DE QUIMICA DEL NOROESTE
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Katz, Néstor Eduardo; Fagalde, Florencia; Lis, Noemi Dora; Parella, Teodor; Fontrodona, Xavier; Romero, Isabel; et al.; Mono- and Dinuclear Complexes of Tricarbonylrhenium(I) with 4-Methyl-2,2′-bipyridine-4′-carbonitrile; Wiley VCH Verlag; European Journal of Inorganic Chemistry; 2014; 21; 6-2014; 3359-3369
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