Takahashi, P. M. [UNESP]Netto, A. V G [UNESP]Mauro, A. E.Frem, Regina C. G. [UNESP]2014-05-272014-05-272005-05-18Journal of Thermal Analysis and Calorimetry, v. 79, n. 2, p. 335-338, 2005.1388-6150http://hdl.handle.net/11449/68239The thermal behavior of the pyrazolyl complexes [NiCl2(HPz) 4] (1), [Ni(NCS)2(HPz)4] (2), [NiCl 2(HdmPz)4]·2H2O (3) and [Ni(NCS) 2(HdmPz)4]·2H2O (4) (HPz=pyrazole, HdmPz=3,5-dimethylpyrazole) has been studied by thermogravimetry (TG) and differential thermal analysis (DTA). The TG data indicated that the thermal stability of [NiX2(HL)4] (X=Cl, NCS) compounds varies depending on the pyrazolyl ligand in the following order HL=HPz>HdmPz. From the thermal decomposition of 3 and 4 it was possible to isolate the intermediate compounds [Ni(μ-Cl)2(HdmPz)2] (3a) and [Ni(μ-1,3-NCS) 2(HdmPz)2] (4a), respectively. The final products of the thermal decompositions of 1-4 were identified as NiO by X-ray powder diffraction. © 2005 Akadémiai Kiadó, Budapest.335-338engDTANickel(II)PseudohalidesPyrazolesTGDifferential thermal analysisOrganometallicsPyrolysisThermodynamic stabilityThermogravimetric analysisX ray powder diffractionNickel compoundsTrabalho apresentado em evento10.1007/s10973-005-0060-8WOS:000227155700020Acesso aberto2-s2.0-18244391702792767705365081985341388134171610000-0002-0057-79640000-0003-1574-681X