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A novel rhenium-aqua structure: the synthesis and structural characterization of (PPh4)4[ReN(H2O)(CN)3-μ-CN-ReN(CN)4] · 5H2O

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Abstract

A novel cyano bridged rhenium nitrido complex, [ReN(H2O)(CN)4-μ-CN-ReN(CN)4]4− (I) was isolated during a kinetic study of the reaction of ReN(H2O)(CN)4]2− with pyridine-2,3-dicarboxylic acid. Yellow crystals of (I), suitable for X-ray structure determination were isolated and the structural data showed an unsymmetrical binuclear rhenium complex with a cyano ligand acting as a bridge between two metal atoms, Re(1) and Re(2). The nitrogen of the bridged cyano ligand coordinates trans to the nitrido ligand of Re(1). The rhenium-nitrido bond distances are 1.657(4) and 1.656(5) Å for Re(1)–N(9) and Re(2)–N(10) respectively. Re(1) and Re(2) are displaced from the planes formed by the four carbon atoms of the cyano ligands towards the nitrido ligands by 0.348(2) and 0.3403(2) Å, respectively.

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Acknowledgements

The Author would like to thank UFS and Mellon Foundation (T. N. Mtshali) for financial support.

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Authors and Affiliations

  1. Department of Chemistry, University of the Free State, Nelson Mandela Road, Bloemfontein, 9300, Republic of South Africa

    T. N. Mtshali, W. Purcell, H. G. Visser & S. S. Basson

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  1. T. N. Mtshali
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  2. W. Purcell
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  3. H. G. Visser
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  4. S. S. Basson
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Correspondence to W. Purcell.

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Mtshali, T.N., Purcell, W., Visser, H.G. et al. A novel rhenium-aqua structure: the synthesis and structural characterization of (PPh4)4[ReN(H2O)(CN)3-μ-CN-ReN(CN)4] · 5H2O. Transition Met Chem 33, 711–716 (2008). https://doi.org/10.1007/s11243-008-9100-0

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  • DOI: https://doi.org/10.1007/s11243-008-9100-0

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