A Low-Valent Iron Imido Heterocubane Cluster: Reversible Electron Transfer and Catalysis of Selective C-C Couplings

Lichtenberg C, Garcia Rubio I, Viciu L, Adelhardt M, Meyer K, Jeschke G, Gruetzmacher H (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 54

Pages Range: 13012-13017

Journal Issue: 44

DOI: 10.1002/anie.201505668

Abstract

Enzymes and cofactors with iron-sulfur heterocubane core structures, [Fe4S4], are often found in nature as electron transfer reagents in fundamental catalytic transformations. An artificial heterocubane with a [Fe4N4] core is reported that can reversibly store up to four electrons at very negative potentials. The neutral [Fe4N4] and the singly reduced low-valent [Fe4N4]^- heterocubanes were isolated and fully characterized. The low-valent species bears one unpaired electron, which is localized predominantly at one iron center in the electronic ground state but fluctuates with increasing temperatures. The electrons stored or released by the [Fe4N4]/[Fe4N4]^- redox couple can be used in reductive or oxidative C-C couplings and even allow catalytic one-pot reactions, which show a remarkably enhanced selectivity in the presence of the [Fe4N4] heterocubanes.

Authors with CRIS profile

Mario Adelhardt Lehrstuhl für Anorganische und Allgemeine Chemie Karsten Meyer Lehrstuhl für Anorganische und Allgemeine Chemie

Involved external institutions

Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich

Switzerland (CH)

How to cite

APA:

Lichtenberg, C., Garcia Rubio, I., Viciu, L., Adelhardt, M., Meyer, K., Jeschke, G., & Gruetzmacher, H. (2015). A Low-Valent Iron Imido Heterocubane Cluster: Reversible Electron Transfer and Catalysis of Selective C-C Couplings. Angewandte Chemie International Edition, 54(44), 13012-13017. https://dx.doi.org/10.1002/anie.201505668

MLA:

Lichtenberg, Crispin, et al. "A Low-Valent Iron Imido Heterocubane Cluster: Reversible Electron Transfer and Catalysis of Selective C-C Couplings." Angewandte Chemie International Edition 54.44 (2015): 13012-13017.

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