Comportamento térmico de compostos ciclopaladados binucleares contendo azo-ligantes aniônicos
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Abstract
This paper deals with the thermal behavior study of cyclopalladated complexes obtained from reactions of [Pd(dmba)N3l2 (1), dmba = N,N-dimethylbenzylamine, with azole-compunds, such as, the anionic ligands pyrazolate (pz), imidazolate (imz) and 3.5-dimethyl-pyrazolate (3.5-dmpz). The characterization of the binuclear complexes [Pd(dmba)(μ-pz)]2 (2), [Pd(dmba)(μ-imz)]2 (3) and [Pd(dmba)(μ-3.5-dmpz)]2 (4) was carried out by elemental analysis, IR and NMR spectroscope Their thermal behaviour has been investigated and the final product was identified by X-ray powder diffractometry which showed the formation of Pd(0) as final decomposition product.
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3,5-dimethyl-pyrazolate, Cyclopalladated, Imidazolate, Pyrazolate, Thermal analysis
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Portuguese
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Ecletica Quimica, v. 27, p. 201-210.
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