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Mono and dinuclear Pd(II) complexes with pyrazole and imidazole-type ligands

Synthesis, characterization and thermal behaviour

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Abstract

The cyanate-bridged cyclopalladated compound [Pd(C2,N-dmba)(μ-NCO)]2 (dmba=N,N-dimethylbenzylamine) reacts in acetone with pyrazole (pz), 3,5-dimethylpyrazole (dmpz), imidazole (imz) and 2-methylimidazole (mimz) to give [Pd2(C2,N-dmba)2(μ-NCO)(μ-pz)] (1), [Pd2(C2,N-dmba)2(μ-NCO)(μ-dmpz)] (2), [Pd(C2,N-dmba)(NCO)(imz)] (3) and [Pd(C2,N-dmba)(NCO)(mimz)] (4), respectively. The compounds were characterized by elemental analysis, IR spectroscopy and TG. The thermal decomposition of the compounds occurs in three consecutive steps and the final decomposition products were identified as Pd(0) by X-ray powder diffraction. The thermal stability order of the complexes is 2>3>1>4.

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Authors and Affiliations

  1. Instituto de Química de Araraquara, São Paulo State University — UNESP, C.P. 355, 14801-970, Araraquara, SP, Brazil

    V. A. Lucca Neto, A. E. Mauro, A. V. G. Netto, A. C. Moro & V. M. Nogueira

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  1. V. A. Lucca Neto
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  2. A. E. Mauro
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  3. A. V. G. Netto
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  4. A. C. Moro
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  5. V. M. Nogueira
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Correspondence to A. E. Mauro.

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Lucca Neto, V.A., Mauro, A.E., Netto, A.V.G. et al. Mono and dinuclear Pd(II) complexes with pyrazole and imidazole-type ligands. J Therm Anal Calorim 97, 57–60 (2009). https://doi.org/10.1007/s10973-008-9667-x

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  • DOI: https://doi.org/10.1007/s10973-008-9667-x

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