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

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Data

2009-07-01

Autores

Lucca Neto, V. A. [UNESP]
Mauro, A. E.
Netto, A. V. G. [UNESP]
Moro, A. C. [UNESP]
Nogueira, V. M. [UNESP]

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Springer

Resumo

The cyanate-bridged cyclopalladated compound [Pd(C(2),N-dmba)(mu-NCO)](2) (dmba=N,N-dimethylbenzylamine) reacts in acetone with pyrazole (pz), 3,5-dimethylpyrazole (dmpz), imidazole (imz) and 2-methylimidazole (mimz) to give [Pd(2)(C(2),N-dmba)(2)(mu-NCO)(mu-pz)] (1), [Pd(2)(C(2),N-dmba)(2)(mu-NCO)(mu-dmpz)] (2), [Pd(C(2),N-dmba)(NCO)(imz)] (3) and [Pd(C(2),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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cyclopalladated compounds, imidazoles, pyrazoles, spectroscopy, thermal analysis

Como citar

Journal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 97, n. 1, p. 57-60, 2009.

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