Artículo
Souto, M.F.; Cukiernik, F.D.; Forlano, P.; Olabe, J.A. "Electronic structure of cyano-bridged dinuclear iron complexes" (2001) Journal of Coordination Chemistry. 54(3-4):343-353
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Abstract:
A series of complexes of formula [(NC)5FenII-NC-FeII (CN)4L]n-, with L = H2O, pyridine, isonicotinamide and 4-cyanopyridine were prepared in aqueous solution by substitution of the corresponding [FeII(CN)5L]n- ions into [FeII(CN)5H2O]3-. The mixed valent (II, III) and fully oxidized (III, III) complexes were also obtained. The (II, II) complexes were moderately stable toward dissociation into the mononuclear species, but the mixed-valent ions were properly characterized by UV-vis-NIR spectroscopy and electrochemistry. Distinctive intervalence (IV) bands were assigned in the NIR region, with the energy being dependent on the binding properties of L; the IV band energy also correlated with the redox potential at the [NC-Fe(CN)4L] fragment. By application of the Hush model, a valence-trapped situation was found for the [(NC)5FeIII-FeII (CN)4L]n- ions. The class II behavior shows, however, a value of Hab, the electronic coupling factor, of ca. 1600cm-1, indicating a moderate-to-strong communication between the metal centers.
Registro:
| Documento: | Artículo |
| Título: | Electronic structure of cyano-bridged dinuclear iron complexes |
| Autor: | Souto, M.F.; Cukiernik, F.D.; Forlano, P.; Olabe, J.A. |
| Filiación: | Departamento de Quimica Inorganica, Analitica y Quim. Fisica/INQUIMAE, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina |
| Palabras clave: | Cyanide complexes; Cyano-bridged complexes; Iron-cyanide complexes; Mixed-valence; iron complex; nitrile; aqueous solution; article; chemical analysis; chemical structure; oxidation; oxidation reduction potential |
| Año: | 2001 |
| Volumen: | 54 |
| Número: | 3-4 |
| Página de inicio: | 343 |
| Página de fin: | 353 |
| DOI: | http://dx.doi.org/10.1080/00958970108022647 |
| Título revista: | Journal of Coordination Chemistry |
| Título revista abreviado: | J. Coord. Chem. |
| ISSN: | 00958972 |
| CODEN: | JCCMB |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00958972_v54_n3-4_p343_Souto |
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Citas:
---------- APA ----------
Souto, M.F., Cukiernik, F.D., Forlano, P. & Olabe, J.A. (2001) . Electronic structure of cyano-bridged dinuclear iron complexes. Journal of Coordination Chemistry, 54(3-4), 343-353.http://dx.doi.org/10.1080/00958970108022647
---------- CHICAGO ----------
Souto, M.F., Cukiernik, F.D., Forlano, P., Olabe, J.A. "Electronic structure of cyano-bridged dinuclear iron complexes" . Journal of Coordination Chemistry 54, no. 3-4 (2001) : 343-353.http://dx.doi.org/10.1080/00958970108022647
---------- MLA ----------
Souto, M.F., Cukiernik, F.D., Forlano, P., Olabe, J.A. "Electronic structure of cyano-bridged dinuclear iron complexes" . Journal of Coordination Chemistry, vol. 54, no. 3-4, 2001, pp. 343-353.http://dx.doi.org/10.1080/00958970108022647
---------- VANCOUVER ----------
Souto, M.F., Cukiernik, F.D., Forlano, P., Olabe, J.A. Electronic structure of cyano-bridged dinuclear iron complexes. J. Coord. Chem. 2001;54(3-4):343-353.http://dx.doi.org/10.1080/00958970108022647
