Polypyrazolylmethane complexes of ruthenium

L. D. Field*, B. A. Messerle, L. Soler, I. E. Buys, T. W. Hambley

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


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 BF4 3b) was formed by the reaction of TPM with RuCl2(PPh3)3 and [Ru(CO)H(PPh3)(TPM)]+X (X = Cl4a or BF4 4b) by the reaction of TPM with Ru(CO)ClH(PPh3)3. The complexes [RuCl (PPh3)(BPM)2]+Cl- 5 and (BPM)(Ph3P)Ru(μ-Cl)3Ru(PPh3)(BPM)] +Cl- 6 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.

Original languageEnglish
Pages (from-to)1959-1965
Number of pages7
JournalJournal of the Chemical Society. Dalton Transactions
Issue number13
Publication statusPublished - 2001
Externally publishedYes


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