A Conductance and Isolation Study of Alkali Metal Ions With Acetoacetate Diester of Polyethylene Glycols in Non Aqueous Solvent

Rafat Qureshi and Uma Sharma

School of Studies in Chemistry, Vikram University, Ujjain (India)

ABSTRACT:

A series of noncyclic oxocrowns have synthesized by transestrificatton of different poly ethylene glycols. Conductivities of alkali metal salt in the presence of these oxocrowns were measured at 25°C in methanol. Formation constants (KML+) of complexes were determined. Isolation and transport studies were carried out. Inspite of being an open chain oxocrowns the complexing properties are retained. The complexes are less stable than cyclic ligands. Transport studies show that the specificity lost in going from cyclic to noncyclic carriers M ligand interaction is hampered by anion in accordance with its basicity & ion pairing ability. No selectivity observed for Na+ ion by these ligands.

KEYWORDS:

Conductance; Diester; Aqueous

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Copy the following to cite this article: Qureshi R, Sharma U. A Conductance and Isolation Study of Alkali Metal Ions With Acetoacetate Diester of Polyethylene Glycols in Non Aqueous Solvent. Orient J Chem 1991;7(3).

Copy the following to cite this URL: Qureshi R, Sharma U. A Conductance and Isolation Study of Alkali Metal Ions With Acetoacetate Diester of Polyethylene Glycols in Non Aqueous Solvent. Orient J Chem 1991;7(3). Available from: http://www.orientjchem.org/?p=39789