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Title: Thermodynamics of the weak interaction between samarium cation and xylitol in water: A chemical model

Abstract

The thermodynamic characterization of the weakly complexed model system Sm[sup 3+]-xylitol has been carried out. The standard Gibbs energy, enthalpy, entropy, volume and heat capacity of complexation of Sm[sup 3+] by xylitol have been determined in water at 25[degrees]. The stability constant and the enthalpy change have been simultaneously determined by using a calorimetric method. The thermodynamic properties characterizing solely the specific interaction between the cation and the complexing sequence of hydroxyl groups of the ligand have been isolated. The stability constant and the volume of complexation have also been estimated from a similar treatment of the apparent molar volumes. It was found that the reaction by: K = 8.1, [Delta][sub r]G[sup o] = -5.2 kJ-mol[sup [minus]1], [Delta][sub r]H[sup o] = -13.7 kJ-mol[sup [minus]1], T[Delta][sub r]S[sup o] = -8.5 kJ-mol[sup [minus]1], [Delta][sub r]V[sup o] = 8.8 cm[sup 3]-mol[sup [minus]1] and [Delta][sub r]C[sup o[sub p]] = 51 J-K[sup [minus]1]-mol[sup [minus]1].

Authors:
; ;  [1]
  1. (Universite Blaise Pascal, Aubiere (France))
Publication Date:
OSTI Identifier:
7275922
Resource Type:
Journal Article
Journal Name:
Journal of Solution Chemistry; (United States)
Additional Journal Information:
Journal Volume: 23:3; Journal ID: ISSN 0095-9782
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; SAMARIUM COMPLEXES; THERMODYNAMIC PROPERTIES; ALCOHOLS; CALORIMETRY; CATIONS; ENTHALPY; ENTROPY; FREE ENTHALPY; SPECIFIC HEAT; STABILITY; CHARGED PARTICLES; COMPLEXES; ENERGY; HYDROXY COMPOUNDS; IONS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPLEXES; 400201* - Chemical & Physicochemical Properties

Citation Formats

Rongere, P., Morel-Desrosiers, N., and Morel, J.P.. Thermodynamics of the weak interaction between samarium cation and xylitol in water: A chemical model. United States: N. p., 1994. Web. doi:10.1007/BF00973108.
Rongere, P., Morel-Desrosiers, N., & Morel, J.P.. Thermodynamics of the weak interaction between samarium cation and xylitol in water: A chemical model. United States. doi:10.1007/BF00973108.
Rongere, P., Morel-Desrosiers, N., and Morel, J.P.. Tue . "Thermodynamics of the weak interaction between samarium cation and xylitol in water: A chemical model". United States. doi:10.1007/BF00973108.
@article{osti_7275922,
title = {Thermodynamics of the weak interaction between samarium cation and xylitol in water: A chemical model},
author = {Rongere, P. and Morel-Desrosiers, N. and Morel, J.P.},
abstractNote = {The thermodynamic characterization of the weakly complexed model system Sm[sup 3+]-xylitol has been carried out. The standard Gibbs energy, enthalpy, entropy, volume and heat capacity of complexation of Sm[sup 3+] by xylitol have been determined in water at 25[degrees]. The stability constant and the enthalpy change have been simultaneously determined by using a calorimetric method. The thermodynamic properties characterizing solely the specific interaction between the cation and the complexing sequence of hydroxyl groups of the ligand have been isolated. The stability constant and the volume of complexation have also been estimated from a similar treatment of the apparent molar volumes. It was found that the reaction by: K = 8.1, [Delta][sub r]G[sup o] = -5.2 kJ-mol[sup [minus]1], [Delta][sub r]H[sup o] = -13.7 kJ-mol[sup [minus]1], T[Delta][sub r]S[sup o] = -8.5 kJ-mol[sup [minus]1], [Delta][sub r]V[sup o] = 8.8 cm[sup 3]-mol[sup [minus]1] and [Delta][sub r]C[sup o[sub p]] = 51 J-K[sup [minus]1]-mol[sup [minus]1].},
doi = {10.1007/BF00973108},
journal = {Journal of Solution Chemistry; (United States)},
issn = {0095-9782},
number = ,
volume = 23:3,
place = {United States},
year = {1994},
month = {3}
}