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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH

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IJPR included in UGC-Approved List of Journals - Ref. No. is SL. No. 4812 & J. No. 63703

Published by : Advanced Scientific Research
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IJPR 9[3] July - September 2017 Special Issue

July - September 9[3] 2017

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Preparation, spectral characterization and biological activity of somenewbimetalic complexes derived from{ 2,2`( (5-methyl-1,3-phenylene )-bis- (oxy ) )-bis-N`(E`)-2- hydroxybenzylideneacetohydrazide}ligand

Author: MAHA MUSTAFA, RIYADH M. AHMED
Abstract: In this work, the preparation of new multidentate Schiff-base lig and and its metal complexes are described. The formation of the lig and{ 2,2` ( (5-methyl-1,3-phenylene )-bis- (oxy ) )-bis-N` (E` )-2- hydroxybenzylideneacetohydrazide}[H2L] was prepared from the reaction {2,2- ( (5-methyl-1,3-phenylene )-bis- (oxy ) )- di- (acetohydrazide )}[M]precursor and salicylaldehyde in a 1:2 mole ratio, respectively. The reaction of the lig and [H2L] with +3 (Cr , Mn +2 and Fe +2 )metal ions in a 1:2 (L:M ) mole ratio. Ligand and complexes were characterised via spectroscopic analyses; [FT-IR, UV-Vis spectroscopy, (C.H.N ) microanalysis, chloride content, thermal analysis(TG ), electrospray mass, magnetic susceptibility and conductivity measurements. The characterisation data showed the six coordinate complexes with the general formula;[M2 (L )Cl4] (where M= Cr +3 )and K2[M2 (L )Cl4] (where M= Mn +2 and +2 Fe ).The ligand [H2L] and its complexes were screened for their antimicrobial activity against four bacterial species (Bacillus subtitles and Staphylococcus aureus) G-positive , (Escherichia coli and Pseudomonas aeruginosa ) G-negative and two fungi species(Candida and trichomoniasis). Biological data indicated that complexes become potentially more active against several type of organism, under survey compared with the free lig and.
Keyword: multidentate Schiff-base ligand; benzylideneacetohydrazide; spectroscopic analyses;Biological activity.
DOI: https://doi.org/10.31838/ijpr/2020.12.01.046
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