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Issue 10, 2015
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Oxidation of germa- and stanna-closo-dodecaborate

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The oxidation of closo-heteroborates [GeB11H11]2− and [SnB11H11]2− is presented. Upon oxidation germa-closo-dodecaborate yields a symmetrical dimer exhibiting a Ge–Ge bond between two clusters. This dimer shows sulphur insertion into the Ge–Ge bond at room temperature. In contrast, oxidation of the homologous tin cluster results in an unsymmetrical dimer bearing an Sn–B bond between two clusters. The Sn–B dimer is also the product of the hydride abstraction reaction. In the presence of the donor ligand 2,2′-bipyridine, the oxidation of closo-cluster [SnB11H11]2− leads to the Sn(IV)-half sandwich coordination compound [bipy-SnB11H11] which dissolves in DMSO to give the Sn(IV)-adduct [bipy(DMSO)-SnB11H11].

Graphical abstract: Oxidation of germa- and stanna-closo-dodecaborate

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The article was received on 09 Jan 2015, accepted on 30 Jan 2015 and first published on 09 Feb 2015

Article type: Paper
DOI: 10.1039/C5DT00099H
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Dalton Trans., 2015,44, 4726-4731

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    Oxidation of germa- and stanna-closo-dodecaborate

    T. Gädt, J. Dimmer, S. Fleischhauer, A. Frank, C. Nickl, T. Wütz, K. Eichele and L. Wesemann, Dalton Trans., 2015, 44, 4726
    DOI: 10.1039/C5DT00099H

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