000			a
999			_c19306 _d19306
003			OSt
005			20230508103920.0
008			230508b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_914556 _aKumar, Vinod
245			_aSyntheses, spectral, thermal and pH-metric studies on bivalent metal ion complexes of N,N’-bis(3-carboxy-1-oxo-z-prop-2-elenyl)ethylenediamine
250			_aVol.61(10), Oct
260			_aNew Delhi _bCSIR _c2022
300			_a1065-1071p.
520			_aA 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.
650		0	_95009 _aGENERAL CHEMISTRY
700			_920683 _aMittal, Sachin
773	0		_x0019-5103 _tIndian journal of chemistry (Section B) _dNew Delhi NISCAIR-CSIR 2005
856			_uhttp://op.niscpr.res.in/index.php/IJC/article/view/67210 _yClick here
942			_2ddc _cAR