Rasmussen, Maren, Näther, Christian, van Leusen, Jan, Kögerler, Paul, Zhechkov, Lyuben, Heine, Thoma and Bensch, Wolfgang (2017) Covalent Co–O–V and Sb–N Bonds Enable Polyoxovanadate Charge Control. Inorganic Chemistry, 56 (12). pp. 7120-7126. DOI 10.1021/acs.inorgchem.7b00724.

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Abstract

The formation of [{CoII(teta)2}{CoII2(tren)(teta)2}VIV15SbIII6O42(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 VIV and CoII spin centers mediated via the Sb–N bridge is comparably weakly antiferromagnetic

Document Type:	Article
Research affiliation:	Kiel University Kiel University > Kiel Marine Science OceanRep > The Future Ocean - Cluster of Excellence
Refereed:	Yes
Open Access Journal?:	Yes
Publisher:	American Chemical Society
Date Deposited:	16 Jan 2018 15:34
Last Modified:	23 Sep 2019 19:37
URI:	https://oceanrep.geomar.de/id/eprint/41519

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