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Syntheses, spectral, thermal and pH-metric studies on bivalent metal ion complexes of N,N’-bis(3-carboxy-1-oxo-z-prop-2-elenyl)ethylenediamine

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Title Syntheses, spectral, thermal and pH-metric studies on bivalent metal ion complexes of N,N’-bis(3-carboxy-1-oxo-z-prop-2-elenyl)ethylenediamine
 
Creator Kumar, Vinod
Mittal, Sachin
Reddy, Malladi J.
Garg, Bhagwan S.
 
Subject Caboxyamide
potentiometric
Bivalent metal ion complex
Coordination compounds
 
Description 1065-1071
A novel carboxyamide ligand has been synthesized using maleic anhydride and ethylenediamine. Co(II), Ni(II), Cu(II)
and Pd(II) complexes of the ligand, i.e., N,N’-bis(3-carboxy-1-oxo-z-prop-2-elenyl)ethylenediamine [H2L] have been
prepared and characterized by elemental analyses, IR, electronic, 1H NMR, EPR spectral and thermal studies. It is revealed
by IR and 1H NMR spectral studies that the ligand coordinated to the metal ions through deprotonated carboxylate oxygen
and non-deprotonated amide nitrogen in all the complexes. It is suggested by electronic spectral and magnetic moment
studies that N2O2 coordination is around each metal center with a strong field square planar chromophore. All the complexes
have been studied by TGA and DTA studies done simultaneously. The complex formation between ligand and metal ions
[Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)] has also been studied pH metrically in 75% aqueous DMF solution at 298 K in
0.1 M NaClO4. The probable structures of the complexes have also been proposed.
 
Date 2022-10-21T05:52:40Z
2022-10-21T05:52:40Z
2022-10
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/60723
https://doi.org/10.56042/ijc.v61i10.67210
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJC Vol.61(10) [Oct 2022]