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Issue 8, 2012
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Bicyclic dinuclear tris-(ditopic diphosphane) complexes of zerovalent group 10 metals

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Abstract

Selective formation of bimetallic group 10 complexes using the Cs symmetric, bicyclic diphosphane P2C12H20 is reported herein. With its eclipsed lone pairs disposed at a relative angle of ca. 45°, the diphosphane framework is ideally suited to form multiple bridges between two metal centers. The complexes contain {M2P6} cages with three diphosphane bridges and a pair of trans-axial ligands such as EPh3 (E = P, As, Sb) or η1-P2C12H20. X-Ray crystallography experiments revealed that the cages have a pseudo-D3h symmetry, with metal–metal distances in the 3.9–4.1 Å range. The complexes were isolated in 48–91% yield as crystalline, bright yellow or orange powders. Substitution of the axial ligands with the {M2P6} cages remaining intact was also observed.

Graphical abstract: Bicyclic dinuclear tris-(ditopic diphosphane) complexes of zerovalent group 10 metals

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Publication details

The article was received on 03 May 2012, accepted on 21 May 2012 and first published on 22 May 2012


Article type: Edge Article
DOI: 10.1039/C2SC20559A
Citation: Chem. Sci., 2012,3, 2474-2478
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    Bicyclic dinuclear tris-(ditopic diphosphane) complexes of zerovalent group 10 metals

    D. Tofan and C. C. Cummins, Chem. Sci., 2012, 3, 2474
    DOI: 10.1039/C2SC20559A

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