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

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Title Statement <p>Syntheses, spectral, thermal and pH-metric studies on bivalent metal ion complexes of N,N<sup>’</sup>-bis(3-carboxy-1-oxo-z-prop-2-elenyl)ethylenediamine</p>
 
Added Entry - Uncontrolled Name Kumar, Vinod ; Department of Chemistry, Deen Dayal Upadhyaya College (University of Delhi) New Delhi-110 078, India
Mittal, Sachin ; Department of Chemistry, Deen Dayal Upadhyaya College (University of Delhi) New Delhi-110 078, India
Reddy, Malladi J; Department of Chemistry, University of Delhi, Delhi-110 007, India
Garg, Bhagwan S; Department of Chemistry, University of Delhi, Delhi-110 007, India
 
Uncontrolled Index Term Caboxyamide, potentiometric, Bivalent metal ion complex, Coordination compounds
 
Summary, etc. <p style="text-align: justify;">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 [H<sub>2</sub>L] have been prepared and characterized by elemental analyses,  IR, electronic, <sup>1</sup>H NMR, EPR spectral and thermal studies. It is revealed by IR and <sup>1</sup>H 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 N<sub>2</sub>O<sub>2</sub> 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 NaClO<sub>4</sub>. The probable structures of the complexes have also been proposed.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry (IJC)
2022-10-21 16:51:33
 
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http://op.niscair.res.in/index.php/IJC/article/view/67210
 
Data Source Entry Indian Journal of Chemistry (IJC); ##issue.vol## 61, ##issue.no## 10 (2022): Indian Journal of Chemistry-(IJC)
 
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