Synthesis and characterization of a dinuclear ferric complex with redox-active ligands

Heinze-Brückner G, Walleck S, Strautmann J, Stammler A, Bögge H, Glaser T (2011)
Inorganica Chimica Acta 374(1): 385-391.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurde kein Volltext hochgeladen. Nur Publikationsnachweis!
Abstract / Bemerkung
A dinuclear ferric complex with the redox-active ligand (L(Cl2))(2-) (H(2)L(Cl2) = N,N'-dimethyl-bis(3,5-dichloro-2-hydroxybenzyl)-1,2-diaminoethane), was synthesized and characterized. The two iron(III) ions are six-coordinate in a distorted octahedral environment of the N(2)O(2)(Ph) donor set of one (L(Cl2))(2) and one amine and one phenolate donor of a second (L(Cl2))(2), which bridges the two complex halves. The relatively low-symmetric complex 1 crystallizes in the space group R (3) over bar. The crystal structure contains hexagonal, one-dimensional channels parallel to the c axis with diameters of similar to 13 angstrom. The absorption spectrum of 1 exhibits strong characteristic features of p(pi) -> d(pi*) ->, p(pi) -> d(sigma*), phenolate-to-metal CTs, and pi -> pi* ligand transitions. Electrochemical studies on 1 reveal the redox-activity of the coordinated ligand (L(Cl2))(2) by showing irreversible oxidative electron-transfer waves. The reductive electron transfers at negative potentials seem to originate from metal-centered processes. A detailed comparison to complexes with similar donor sets provides new insights into the electrochemical properties of these kinds of complexes. (C) 2011 Elsevier B.V. All rights reserved.
Stichworte
Iron; complexes; Non-innocent ligands; Bioinorganic chemistry; Electrochemistry
Erscheinungsjahr
2011
Zeitschriftentitel
Inorganica Chimica Acta
Band
374
Ausgabe
1
Seite(n)
385-391
ISSN
0020-1693
Page URI
https://pub.uni-bielefeld.de/record/2394554

Zitieren

Heinze-Brückner G, Walleck S, Strautmann J, Stammler A, Bögge H, Glaser T. Synthesis and characterization of a dinuclear ferric complex with redox-active ligands. Inorganica Chimica Acta. 2011;374(1):385-391.
Heinze-Brückner, G., Walleck, S., Strautmann, J., Stammler, A., Bögge, H., & Glaser, T. (2011). Synthesis and characterization of a dinuclear ferric complex with redox-active ligands. Inorganica Chimica Acta, 374(1), 385-391. doi:10.1016/j.ica.2011.03.059
Heinze-Brückner, G., Walleck, S., Strautmann, J., Stammler, A., Bögge, H., and Glaser, T. (2011). Synthesis and characterization of a dinuclear ferric complex with redox-active ligands. Inorganica Chimica Acta 374, 385-391.
Heinze-Brückner, G., et al., 2011. Synthesis and characterization of a dinuclear ferric complex with redox-active ligands. Inorganica Chimica Acta, 374(1), p 385-391.
G. Heinze-Brückner, et al., “Synthesis and characterization of a dinuclear ferric complex with redox-active ligands”, Inorganica Chimica Acta, vol. 374, 2011, pp. 385-391.
Heinze-Brückner, G., Walleck, S., Strautmann, J., Stammler, A., Bögge, H., Glaser, T.: Synthesis and characterization of a dinuclear ferric complex with redox-active ligands. Inorganica Chimica Acta. 374, 385-391 (2011).
Heinze-Brückner, Gabriele, Walleck, Stephan, Strautmann, Julia, Stammler, Anja, Bögge, Hartmut, and Glaser, Thorsten. “Synthesis and characterization of a dinuclear ferric complex with redox-active ligands”. Inorganica Chimica Acta 374.1 (2011): 385-391.