ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Potentiometric end Thermodynamic Studies of 2-Acrylamidosulfacetamide and its Metal Complexes in Monomeric and Polymeric Forms

A. S. Al-Shihri, A. M. Abdel-Hady, and A. A. El-Bindary

Department of Chemistry, Faculty of Science, King Khalid University, ABha, Saudi Arabia

E-mail: alshihri@hotmail.com

Received: 4 November 2002

Abstract: Proton—monomeric ligand dissociation and metal—monomeric ligand stability constants of 2-acrylamidosulfacetamide (ASA) with some metal ions were calculated potentiometrically in 0. l M-KCl and 40 vol. % ethanol—water mixture. Also, in the presence of 2,2\’-azobisisobutyronitrile as initiator the proton—polymeric ligand dissociation and metal—polymeric ligand stability constants were calculated. The Effect of temperature on the dissociation of ASA and the stability of its formed complexes was studied in monomeric and polymeric forms. The corresponding thermodynamic functions were derived and discussed. The dissociation process is nonspontaneous, endothermic and entropically unfavorable. The formation of the metal complexes has been found to be spontaneous, endothermic and entropically favourable.

Full paper in Portable Document Format: 583a155.pdf

Chemical Papers 58 (3) 155–159 (2004)