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New Transition and Actinide Metal Complexes of 2‐Carboxy‐phenylhydrazo‐Benzoylacetone Ligand: Synthesis, Characterization and Biological Study
Author(s) -
KHALIL M. M. H.,
MASHALY M. M.
Publication year - 2008
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200890302
Subject(s) - chemistry , octahedron , ligand (biochemistry) , crystallography , metal , lanthanide , dodecahedron , transition metal , inorganic chemistry , stereochemistry , crystal structure , ion , organic chemistry , biochemistry , receptor , catalysis
A new series of binary mononuclear complexes were prepared from the reaction of the hydrazone ligand, 2‐carboxyphenylhydrazo‐benzoylacetone (H 2 L), with the metal ions, Cd(II), Cu(II), Ni(II), Co(II), Th(IV) and UO 2 (VI). The binary Cu(II) complex of H 2 L was reacted with the ligands 1,10‐phenanthroline or 2‐aminopyridine to form mixed‐ligand complexes. The binary complexes of Cu(II) and Ni(II) are suggested to have octahedral configurations. The Cd(II) and Co(II) complexes are suggested to have tetrahedral and/or square‐planar geometries, respectively. The Th(IV) and UO 2 (VI) complexes are suggested to have octahedral and dodecahedral geometries, respectively. The mixed‐ligand complexes have octahedral configurations. The structures of all complexes and the corresponding thermal products were elucidated by elemental analyses, conductance, IR and electronic absorption spectra, magnetic moments, 1 H NMR and TG‐DSC measurements as well as by mass spectroscopy. The ligand and some of the metal complexes were found to activate the enzyme pectinlyase.