Influence of confinement on solvation of ethanol in water studied by Raman spectroscopy

被引：47

作者：

Ratajska-Gadomska, B. ^{[1
]}

Gadomski, W. ^{[1
]}

机构：

[1] Univ Warsaw, Lab Physicochem Dielect & Magnet, Dept Chem, PL-02089 Warsaw, Poland

来源：

JOURNAL OF CHEMICAL PHYSICS | 2010年 / 133卷 / 23期

关键词：

NUCLEAR-MAGNETIC-RESONANCE; SELF-ASSOCIATION; DYNAMICS; HYDRATION; MIXTURES; CLUSTERS; FREQUENCY; ALCOHOLS; METHANOL; SOLUTE;

D O I：

10.1063/1.3520435

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Herewith we present the results of our studies on the effect of confinement on the solvation of ethyl alcohol in aqueous solutions using Raman spectroscopy of the O-H stretching band. Based on Gaussian-Lorentzian deconvolution of the O-H band Raman spectra we investigate the local structures created between water-water, water-alcohol, and alcohol-alcohol molecules, which are directly related to the solubility of the liquids. Comparison of the responses in bulk solutions and in solutions confined in the pores of the gelatin gel shows that for high ethanol concentrations solubility significantly increases with decrease of the pore sizes. (c) 2010 American Institute of Physics. [doi:10.1063/1.3520435]

引用

页数：7

共 39 条

[1] A NUCLEAR MAGNETIC RESONANCE STUDY OF WATER-ETHANOL MIXTURES [J].

AGENO, M ;

INDOVINA, PL .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1967, 57 (05) :1158-&

[2]

Ahn DS, 2003, B KOREAN CHEM SOC, V24, P695

[3] Hydrogen bond networks: Structure and evolution after hydrogen bond breaking [J].

Asbury, JB ;

Steinel, T ;

Fayer, MD .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (21) :6544-6554

[4] Hydration in protein dynamics and function [J].

Bellissent-Funel, MC .

JOURNAL OF MOLECULAR LIQUIDS, 2000, 84 (01) :39-52

[5] Hydrogen exchange and hydration dynamics in gelatin gels [J].

Chavez, Fabian Vaca ;

Hellstrand, Erik ;

Halle, Bertil .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (43) :21551-21559

[6] PMR STUDIES ON STRUCTURES OF WATER-ETHYL ALCOHOL MIXTURES [J].

COCCIA, A ;

INDOVINA, PL ;

PODO, F ;

VITI, V .

CHEMICAL PHYSICS, 1975, 7 (01) :30-40

[7] New insight on the hydrogen bonding structures of nanoconfined water: a Raman study [J].

Crupi, Vincenza ;

Interdonato, Salvatore ;

Longo, Francesca ;

Majolino, Domenico ;

Migliardo, Placido ;

Venuti, Valentina .

JOURNAL OF RAMAN SPECTROSCOPY, 2008, 39 (02) :244-249

[8] SELF-ASSOCIATION OF MONOHYDRIC ALCOHOLS IN WATER - COMPRESSIBILITY AND INFRARED-ABSORPTION MEASUREMENTS [J].

DANGELO, M ;

ONORI, G ;

SANTUCCI, A .

JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (04) :3107-3113

[9] Molecular segregation observed in a concentrated alcohol-water solution [J].

Dixit, S ;

Crain, J ;

Poon, WCK ;

Finney, JL ;

Soper, AK .

NATURE, 2002, 416 (6883) :829-832

[10]

DJABOUROV M, 1993, J PHYS II, V3, P611, DOI 10.1051/jp2:1993155

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