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https://open.uns.ac.rs/handle/123456789/10380
Title: | Reactions of divalent transition metal halides with 3,5-dimethyl-1- (hydroxymethyl)-pyrazole: Part 23. Transition metal complexes with pyrazole-based ligands | Authors: | Leovac V. Petković R. Kovács A. Pokol G. Mesaroš-Sečenji (Mészáros Szécsényi), Katalin |
Issue Date: | 1-Jul-2007 | Journal: | Journal of Thermal Analysis and Calorimetry | Abstract: | Factors determining the complex formation reaction of copper(II), nickel(II) and cobalt(II) chloride and copper(II) bromide with 3,5-dimethyl-1-(hydroxymethyl)-pyrazole (HL) has been studied. Depending on experimental conditions, complexes with different composition were obtained: [CuCl2(dmp)]2 (I), [CuCl2(dmp) 2]2 (II), [CoCl2(dmp)2] (III) (dmp=3,5-dimethylpyrazole), [CuBr(L)]2 (IV), [CoCl(L)(EtOH)] 4 (V) and [NiCl(L)(EtOH)]4 (VI). The compounds were characterized by FTIR spectroscopy, solution conductivity and magnetic measurements. The crystal structure of [CoCl(L)(EtOH)]4 has been determined by single crystal X-ray diffraction. The thermal decomposition of the compounds was studied and found to be continuous for all of the compounds. The desolvation mechanism of [MCl(L)(EtOH)]4 (M=Co(II), Ni(II)) is explained on the basis of the route of complex formation of CoCl2 with HL. © 2007 Springer Science+Business Media LLC. | URI: | https://open.uns.ac.rs/handle/123456789/10380 | ISSN: | 13886150 | DOI: | 10.1007/s10973-006-7564-8 |
Appears in Collections: | PMF Publikacije/Publications |
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