Equilibrium Studies on the Formation of Binary Metal Chelates of Bivalent Metal Ions With Schiff Bases

Department of Chemistry, Osmania University, Hyderabad-500 007 India.

ABSTRACT:

Formation constants of binary metal chelates of Cu(II), Ni(II), Co(II), Zn(II) and Cd(II) with 2[[(1H-benzimidazol-2-ylmethyl) imino] methyl]-4-chlorophenol (CI-BMIMP) and 2([1H-benzimidazol-2-ylmethyl) imino] methyl]-4-methoxypheno| (MeO-BMIMP) have been determined pH metrically in 60% v/v aq. methanol at 300C and I=0.1 M (NaC1O4) and compared with the formation constants of 2[[(1H-benzimidazol-2-ylmethyl) imino]-methyl] phenol (BMIMP) complexes. The order of stability constants with respect to metal ions is in conformity with Irving* William's natural order of stabilities. With respect to the ligands, the stability sequence (MeO-BMIMP > BMIP > Cl-BMIMP) is in accordance with their relative basicities.

KEYWORDS:

Equilibrium; Bivalent

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Copy the following to cite this article: Das M, D, Chandra Pal A. V. Nucleophilic Attack of Amine to Chloro (8 -Quinolinolate) W η2-Alkene Platinum (II) Compounds: Formation of Stable σ-(2-Ammonioethanide) Platinum (II) Compounds. Orient J Chem 1990;6(3).

Copy the following to cite this URL: Das M, D, Chandra Pal A. V. Nucleophilic Attack of Amine to Chloro (8 -Quinolinolate) W η2-Alkene Platinum (II) Compounds: Formation of Stable σ-(2-Ammonioethanide) Platinum (II) Compounds. Orient J Chem 1990;6(3). Available from: http://www.orientjchem.org/?p=40012