Artículo
Ketterle, M.; Kaim, W.; Olabe, J.A.; Parise, A.R.; Fiedler, J. "Widely differing stabilities of molecule-bridged cyanodiiron(III, II) species in non-aqueous solvents" (1999) Inorganica Chimica Acta. 291(1-2):66-73
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Abstract:
The redox systems [(NC)5Fe(μ-L)Fe(CN)5])6-/5-/4- with L=pyrazine (1n), 4,4′-bipyridine (2n) or 1,2-bis(4-pyridyl)ethene (3n), and [(NC)4Fe(μ-bmtz)Fe(CN)4]5-/4-/3- (4n) with bmtz=3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine were studied in acetonitrile and other aprotic solvents. The comproportionation constants Kc for the mixed-valent diiron(III, II) intermediates vary from less than 10 for 35- via 106.5 for 15- to 1014.1 for 43-. Intervalence charge transfer band maxima lie between 1270 nm (25-) and 2475 nm (15-). In comparison with previous results from aqueous solutions, the system 1n in particular shows increased metal-metal interaction. UV-Vis and IR spectroelectrochemistry suggest a localized/delocalized borderline sitation for 15- in acetonitrile, with only slightly weaker metal-metal coupling than in the related Creutz-Taube ion. The results illustrate how the established strong solvent sensitivity of cyanoiron complexes can be exploited in mixed-valence chemistry. © 1999 Elsevier Science S.A.
Registro:
| Documento: | Artículo |
| Título: | Widely differing stabilities of molecule-bridged cyanodiiron(III, II) species in non-aqueous solvents |
| Autor: | Ketterle, M.; Kaim, W.; Olabe, J.A.; Parise, A.R.; Fiedler, J. |
| Filiación: | Inst. für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart D-70550, Germany Depto. de Quim. Inorgánica, Analitica Y Quim. Fis. (I., Capital Federal, Argentina J. Heyrovsky Inst. of Phys. Chem., Acad. of Sci. of the Czech Republic, Dolejškova 3, Prague CZ-18223, Czech Republic |
| Palabras clave: | Cyano complexes; Iron complexes; Mixed-valence complexes; Spectroelectrochemistry |
| Año: | 1999 |
| Volumen: | 291 |
| Número: | 1-2 |
| Página de inicio: | 66 |
| Página de fin: | 73 |
| Título revista: | Inorganica Chimica Acta |
| Título revista abreviado: | Inorg. Chim. Acta |
| ISSN: | 00201693 |
| CODEN: | ICHAA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v291_n1-2_p66_Ketterle |
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Citas:
---------- APA ----------
Ketterle, M., Kaim, W., Olabe, J.A., Parise, A.R. & Fiedler, J. (1999) . Widely differing stabilities of molecule-bridged cyanodiiron(III, II) species in non-aqueous solvents. Inorganica Chimica Acta, 291(1-2), 66-73.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v291_n1-2_p66_Ketterle [ ]
---------- CHICAGO ----------
Ketterle, M., Kaim, W., Olabe, J.A., Parise, A.R., Fiedler, J. "Widely differing stabilities of molecule-bridged cyanodiiron(III, II) species in non-aqueous solvents" . Inorganica Chimica Acta 291, no. 1-2 (1999) : 66-73.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v291_n1-2_p66_Ketterle [ ]
---------- MLA ----------
Ketterle, M., Kaim, W., Olabe, J.A., Parise, A.R., Fiedler, J. "Widely differing stabilities of molecule-bridged cyanodiiron(III, II) species in non-aqueous solvents" . Inorganica Chimica Acta, vol. 291, no. 1-2, 1999, pp. 66-73.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v291_n1-2_p66_Ketterle [ ]
---------- VANCOUVER ----------
Ketterle, M., Kaim, W., Olabe, J.A., Parise, A.R., Fiedler, J. Widely differing stabilities of molecule-bridged cyanodiiron(III, II) species in non-aqueous solvents. Inorg. Chim. Acta. 1999;291(1-2):66-73.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v291_n1-2_p66_Ketterle [ ]
