Approximating the Electrostatic Contribution to the Entropy Change of Aqueous Phase Lanthanide-Aminocarboxylate Complexation

Thomas J. Manning
Department of Chemistry, Valdosta State University, Valdosta, GA 31698
J. Chem. Educ., 1996, 73 (7), p 661
DOI: 10.1021/ed073p661
Publication Date (Web): July 1, 1996

Abstract

A model is presented to approximate the elctrostatic contribution to the entropy change of the reaction for aqueous lanthanide-aminocarboxylate complexes. The procedure is outlined using La(3+)-EDTA complexation to predict the entropy change per carboxylate, the entropy change per amine, and the total entropy change. Good agreement exists between experimental and theoretical values.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Inorganic Chemistry

Keywords (Subject):

Thermodynamics
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  • Received: August 03, 2009

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