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Issue 13, 2001
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Polypyrazolylmethane complexes of ruthenium

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A series of ruthenium(II) complexes with the pyrazolyl alkane ligands tris(1-pyrazolyl)methane 1 (TPM) and bis(1-pyrazolyl)methane 2 (BPM) have been synthesized and characterised. The complex [RuCl(PPh3)2(TPM)]+X (X = Cl 3a or BF43b) was formed by the reaction of TPM with RuCl2(PPh3)3 and [Ru(CO)H(PPh3)(TPM)]+X (X = Cl 4a or BF44b) by the reaction of TPM with Ru(CO)ClH(PPh3)3. The complexes [RuCl(PPh3)(BPM)2]+Cl5 and (BPM)(Ph3P)Ru(μ-Cl)3Ru(PPh3)(BPM)]+Cl6 were synthesized by the reaction of BPM with RuCl2(PPh3)3. Complexes 3–6 were characterised by multinuclear NMR spectroscopy, and 3a and 6 by X-ray crystallography. [RuCl(PPh3)2(TPM)]+Cl exhibits dynamic behaviour at low temperature and this is attributed to restricted rotation of the PPh3 groups about the M–P bond.

Graphical abstract: Polypyrazolylmethane complexes of ruthenium [ ]

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The article was received on 11 Oct 2000, accepted on 02 May 2001 and first published on 12 Jun 2001

Article type: Paper
DOI: 10.1039/B103939N
J. Chem. Soc., Dalton Trans., 2001, 1959-1965

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    Polypyrazolylmethane complexes of ruthenium

    L. D. Field, B. A. Messerle, L. Soler, I. E. Buys and T. W. Hambley, J. Chem. Soc., Dalton Trans., 2001, 1959
    DOI: 10.1039/B103939N

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