The effect of microscopic inhomogeneities in acetone/methanol binary liquid mixtures observed through the Raman spectroscopic noncoincidence effect

被引:31
|
作者
Musso, Maurizio [1 ]
Giorgini, Maria Grazia [2 ]
Torii, Hajime [3 ]
机构
[1] Salzburg Univ, Dept Engn Math & Phys, A-5020 Salzburg, Austria
[2] Univ Bologna, Dept Phys & Inorgan Chem, I-40136 Bologna, Italy
[3] Shizuoka Univ, Sch Educ, Dept Chem, Shizuoka 4228529, Japan
基金
奥地利科学基金会;
关键词
Raman spectroscopy; Molecular liquids; Noncoincidence effect; Azeotrope; INSTRUMENT RESPONSE FUNCTION; C=O STRETCHING MODE; ACETONE/DIMETHYL SULFOXIDE; ACETONE-METHANOL; SPECTRA; THERMODYNAMICS; CALIBRATION; STANDARDS;
D O I
10.1016/j.molliq.2008.08.006
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
The noncoincidence effect of the C=O stretch of acetone and of the O-H stretch of methanol in acetone/methanol mixtures has been Studied as function of the concentration of the two liquids in the mixture at 293 K. The observed convex concentration dependence of the noncoincidence effect both for the C=O stretch and the O-H stretch is in agreement with that obtained for a Stockmayer mixture via Monte Carlo simulation, indicating the occurrence of microscopic inhomogeneities. (C) 2008 Elsevier B.V. All rights reserved.
引用
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页码:37 / 44
页数:8
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