Some aspects of the preparation, characterization and thermal decomposition of anisaldehyde Girard T complexes of some transition elements

Autor:	M. E. M. Emam, M. N. H. Moussa, M. A. H. Hafez
Rok vydání:	1991
Předmět:	chemistry.chemical_classification Magnetic moment Transition metal chemistry Elemental analysis Ligand Metal ions in aqueous solution Inorganic chemistry Thermal decomposition Infrared spectroscopy Physical chemistry Hydrazone
Zdroj:	Journal of Thermal Analysis. 37:1005-1013
ISSN:	1572-8943 0368-4466
DOI:	10.1007/bf01932798
Popis:	Anisaldehyde Girard T complexes of Mn(II), Fe(III), Co(II) and Cu(II) with the general formula [MCl2(AGT)2]Cl2 or [MCl2(AGT)]Cl, where (AGT)=anisaldehyde carbohydrazone methyltrimethylammonium cation, H3C-O-C6H4-CH=N-NHCOCH2N+-(CH3)3 andM=Mn(II), Co(II), Fe(III) or Cu(II) were prepared. Elemental analysis, electrical conductance and IR spectra showed that the ligand coordinates with the studied metals in keto form through the azomethine and carbonyl groups. The molar conductances, electronic spectra and magnetic moments of the solid complexes were determined. The processes of thermal decomposition of these complexes were studied. From the analysis of the thermal decomposition curves obtained, the corresponding kinetic parametersn, Ea and logA were evaluated by two different methods and the effects of the central metal ions on the stabilities of the complexes are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d0398aea43db7217f4488e7449740b7a https://doi.org/10.1007/bf01932798 Zobrazit plný text záznamu Full text from SpringerLink