Thermal behaviour and kinetic analysis of the thermogravimetric data of some copper(II), nickel(II), and palladium(II) 2-hydroxyaryloximates

Spectral and thermal features of some novel iron(III) chelates with substituted 2-hydroxyaryloximes

“…The initial decomposition temperatures indicate that the thermal stabilities of the complexes under investigation follow the series Fe(opox)a_>Fe(mpox)3>Fe(ppox)3, which is in agreement with our previous results regarding analogous complexes of Cu(II), Ni(II) and Pd(II) with the same ligands [15].…”

“…The Z values are of the order l0 s s -t. Moreover, it seems that the thermal stabilities of the studied Fe(III) 2-hydroxyaryloximates, as indicated by their initial temperatures and their activation energies, are quite close to the thermal stabilities of the analogous complexes of copper(II) [15]. The latter complexes exhibit biological activity, as recently reported [31 and references therein].…”

“…The origin of this peak can only be tentatively assumed. It may be due to the diffusion of the gaseous products of the first decomposition stage with oxygen, since the liberated ligand opox is less volatile than the ligands ppox and mpox [15]. The overalI decomposition path may be expressed by the reaction:…”

“…Although the thermal behavior of several divalent metal salicylaldoximates has received considerable attention from some investigators ( [15] and references therein), one paper on the thermal behavior of tris(orthovaniUinoximate)chromium(III) [16] is the only report regarding the trivalent metal hydroxyaryloximates. Continuing our investigations, we report here results concerning the synthesis and characterization of iron(Ill) complexes with the general formula FeL3, where L is the anion of the following 2-hydroxyaryloximes.…”

Crystal, molecular, and electronic structure of Trans‐bis[ethanone, 1‐(2‐hydroxyphenyl)‐oximato]Nickel(II)

“…Regarding the nickel(I1) chelates of hydroxyoximes, we have previously demonstrated the chemical, electronic and thermal behaviour ') Permanent address: Department of Chemistry, University of Chittagong, Chittagong, Bangladesh. of some substituted bis(2-hydroxyaryloximato)nickel(II) chelates [8,9]. The trans configuration of bis(2-hydroxypropiophenoneoximato)nickel(II), Ni(ppox)2, has also been established [S].…”