Covalent Co-O-V and Sb-N Bonds Enable Polyoxovanadate Charge Control

Rasmussen M, Naether C, Van Leusen J, Koegerler P, Zhechkov L, Heine T, Bensch W (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Inorganic Chemistry American Chemical Society

Book Volume: 56

Pages Range: 7120-7126

Journal Issue: 12

DOI: 10.1021/acs.inorgchem.7b00724

Abstract

The formation of [{Co^II(teta)2}{Co^II2(tren)(teta)2}V^IV15Sb^III6O42(H2O)]·ca.9H2O [teta = triethylenetetraamine; tren = tris(2-aminoethyl)amine] illustrates a strategy toward reducing the molecular charge of polyoxovanadates, a key challenge in their use as components in single-molecule electronics. Here, a V-O-Co bond to a binuclear Co²⁺-centered complex and a Sb-N bond to the terminal N atom of a teta ligand of a mononuclear Co²⁺ complex allow for full charge compensation of the archetypal molecular magnet [V15Sb6O42(H2O)]^6-. Density functional theory based electron localization function analysis demonstrates that the Sb-N bond has an electron density similar to that of a Sb-O bond. Magnetic exchange coupling between the V^IV and Co^II spin centers mediated via the Sb-N bridge is comparably weakly antiferromagnetic.

Involved external institutions

Christian-Albrechts-Universität zu Kiel

Germany (DE) Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen

Germany (DE) Universität Leipzig

Germany (DE)

How to cite

APA:

Rasmussen, M., Naether, C., Van Leusen, J., Koegerler, P., Zhechkov, L., Heine, T., & Bensch, W. (2017). Covalent Co-O-V and Sb-N Bonds Enable Polyoxovanadate Charge Control. Inorganic Chemistry, 56(12), 7120-7126. https://doi.org/10.1021/acs.inorgchem.7b00724

MLA:

Rasmussen, Maren, et al. "Covalent Co-O-V and Sb-N Bonds Enable Polyoxovanadate Charge Control." Inorganic Chemistry 56.12 (2017): 7120-7126.

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