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Titolo:
Partition of solutes from the gas phase and from water to wet and dry di-n-butyl ether: a linear free energy relationship analysis
Autore:
Abraham, MH; Zissimos, AM; Acree, WE;
Indirizzi:
Univ London Univ Coll, Dept Chem, London WC1H 0AJ, England Univ London Univ Coll London England WC1H 0AJ , London WC1H 0AJ, England Univ N Texas, Dept Chem, Denton, TX 76203 USA Univ N Texas Denton TX USA 76203 N Texas, Dept Chem, Denton, TX 76203 USA
Titolo Testata:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
fascicolo: 17, volume: 3, anno: 2001,
pagine: 3732 - 3736
SICI:
1463-9076(2001)3:17<3732:POSFTG>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
BOND COMPLEXATION CONSTANTS; LOG K-VALUES; SOLVATION DESCRIPTORS; ORGANIC-COMPOUNDS; SOLVENT SYSTEMS; DIBUTYL ETHER; 298 K; SOLUBILITY; TETRACHLOROMETHANE; VAPORS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Abraham, MH Univ London Univ Coll, Dept Chem, 20 Gordon St, London WC1H 0AJ, England Univ London Univ Coll 20 Gordon St London England WC1H 0AJ nd
Citazione:
M.H. Abraham et al., "Partition of solutes from the gas phase and from water to wet and dry di-n-butyl ether: a linear free energy relationship analysis", PHYS CHEM P, 3(17), 2001, pp. 3732-3736

Abstract

From literature data and from our own measurements, we have compiled a database of partition coefficients of non-electrolytes from water to wet di-n-butyl ether (DBE) and dry DBE, and from the gas phase to wet DBE and to dryDBE. Application of the general linear free energy relationship solvation equations shows that there are small, but significant, differences in the solvation behaviour of wet and dry DBE. In particular, the partition of acidic solutes into wet DBE is favoured over partition into dry DBE. An analysis based on the water-dragging effect of Testa et al. (J. Am. Chem. Soc., 1993, 115, 963) accounts quantitatively for this difference, which is shown to be due to complexation between acidic solutes and water acting as hydrogen bond base. It is suggested that even minute quantities of water may influence the solvation behaviour of non-polar solvents towards specific classesof solute.

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Documento generato il 19/09/20 alle ore 18:05:02