Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   APRIL 2014 , Volume 11 , Number 2; Page(s) 379 To 389.
 
Paper: 

SYNTHESIS, STRUCTURAL, SPECTROSCOPIC, BIOLOGICAL AND CATALYTIC ACTIVITY OF CO (II), NI (II) AND CU (II) COMPLEXES OF BENZILIC HYDRAZIDE (BH)

 
 
Author(s):  EL GHAMRY HODA*, EL SHARKAWY REHAB, GABER MOHAMED
 
* CHEMISTRY DEPARTMENT, FACULTY OF SCIENCE, TANTA UNIVERSITY, TANTA, EGYPT
 
Abstract: 

Co (II), Ni (II) and Cu (II) chloro complexes of benzilic hydrazide (BH) have been synthesized. Also, reaction of the ligand (BH) with several copper (II) salts, including NO3-, AcO-, and SO4- afforded metal complexes of the general formula [CuLX (H2O) n].nH2O, where X is the anion and n = 0, 1 or 2. The newly synthesized complexes were characterized by elemental analysis, mass spectra, molar conductance, UV-vis, IR spectra, magnetic moment, and thermal analysis (TG/DTG). The physic-chemical studies support that the ligand acts as monobasic bidentate towards metal ion through the carbonyl and hydroxyl oxygen atoms. The spectral data revealed that the geometrical structure of the complexes is square planar for Cu (II) complexes and tetrahedral for Co (II) and Ni (II) complexes. Structural parameters of the ligand and its complexes have been calculated. The ligand and its metal complexes are screened for their antimicrobial activity. The catalytic activities of the metal chelates have been studied towards the oxidative decolorization of AB25, IC and AB92 dyes using H2O2. The catalytic activity is strongly dependent on the type of the metal ion and the anion of Cu (II) complexes.

 
Keyword(s): BENZILIC HYDRAZIDE COMPLEXES, SPECTROSCOPY, THERMAL, ANTIMICROBIAL, MOLECULAR MODELING, CATALYTIC ACTIVITY
 
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