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Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry Volume 22, 1992 - Issue 9
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Original Articles

Coordinative Capabilities of Acido Anions in Metal Complexes of Isatin and Vanillin Derivatives

Neena Singh Department of Postgraduate Studies and Research in Chemistry, R. D. University, Jabalpur, 482 001
,
Sunita Hingorani Department of Postgraduate Studies and Research in Chemistry, R. D. University, Jabalpur, 482 001; Department, of Chemisry, University of Florida, Gainesville, Florida, USA
,
Jyoti Srivastava Department of Postgraduate Studies and Research in Chemistry, R. D. University, Jabalpur, 482 001
,
Vanita Puri Department of Postgraduate Studies and Research in Chemistry, R. D. University, Jabalpur, 482 001
&
B. V. Agarwala Department of Postgraduate Studies and Research in Chemistry, R. D. University, Jabalpur, 482 001
Pages 1283-1293 | Received 07 Nov 1991, Accepted 18 May 1992, Published online: 23 Sep 2006
 
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Abstract

The synthesis and characterization of two Schiff base hydrazone ligands isatin isonicotinic acid hydrazone (HIINH) and vanillin isonicotinic acid hydrazone (VINH) and their metal complexes with various salts of Cu(II) and Ni(II) are reported. The complexes have the compositions [M(IINH)X] or [M(VINH)2X2], where X=C1, NO3 or ½SO4, which contain 4- or 6-coordinated metals. The complexation of the former ligand occurs in the deprotonated diol form of the ligand, via the azomethine nitrogen and the carbonyl oxygen. All complexes were characterized by elemental analysis, m. p., molar conductance measurements and infrared and electronic spectral data.

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