Studies on complexes of VO(II), Mn(II), Cu(II), Ni(II), Co(II), Zn(II), Fe(III), and UO2(II) with hydrazone β-diketone ligands

Autor:	Shaker L. Stefan, Mostafa El-Behairy, Mohamed S. Abdel-Moez, B.A. El-Shetary, Mohamed M. Mashely
Rok vydání:	1990
Předmět:	chemistry.chemical_classification Metal ions in aqueous solution Organic Chemistry Inorganic chemistry Infrared spectroscopy Hydrazone General Chemistry Magnetic susceptibility Catalysis Metal Transition metal chemistry visual_art visual_art.visual_art_medium Molecule Titration Nuclear chemistry
Zdroj:	Canadian Journal of Chemistry. 68:774-781
ISSN:	1480-3291 0008-4042
DOI:	10.1139/v90-122
Popis:	The stepwise stability constants of VO(II), Mn(II), Cu(II), Ni (II), Co(II), Zn(II), Fe(III), and UO2(II) metal ions with 2-(2-acetylphenylhydrazone)-5,5-dimethyl-1,3-cyclohexane dione (2-APHDm), 3-(2-acetylphenylhydrazone)pentane-2,4-dione (2-APHA), 2-(2-acetylphenylhydrazone)-1-phenyl-1,3-butane dione (2-APHB), 2-(2-acetylphenylhydrazone)-1,3-diphenyl-1,3-propane dione (2-APHDB), and 3-(2-acetylphenylhydrazone)-1,1,1-trifluoropentane-2,4-dione (2-APHTA) were determined at 30 °C by pH titrations in 75% (v/v) dioxane–water solvent. In addition, metal complexes of three related β-diketones, 2-APHA, 2-APHB, and 2-APHDB have been synthesized and characterized by elemental analysis, uv–visible, ir spectra, and conductance in DMF and magnetic susceptibility measurements. The structure of the complexes have been proposed. Keywords: transition metal complexes of hydrazone-β-diketone ligands.
Databáze:	OpenAIRE
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