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.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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.
Erscheinungsjahr
Zeitschriftentitel
Inorganica Chimica Acta
Band
374
Zeitschriftennummer
1
Seite
385-391
ISSN
PUB-ID

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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.