Characterization of lactam-containing binary solvents by solvatochromic indicators

被引：53
|
作者：
García, B [1 ]
Aparicio, S [1 ]
Alcalde, R [1 ]
Ruiz, R [1 ]
Dávila, MJ [1 ]
Leal, JM [1 ]
机构：
[1] Univ Burgos, Dept Quim, Burgos 09001, Spain
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 09期
关键词：
D O I：
10.1021/jp037124t
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：
Preferential solvation and intermolecular interactions of the solvatochromic indicators 4-nitroanisole, 4-nitroaniline, 4-nitrophenol, and Reichardt's dye is studied at 298.15 K in the binary solvents 2-pyrrolidinone/water, N-methylpyrrolidinone/water, and 2-pyrrolidinone/N-methylpyrrolidinone. From the experimental data the Reichardt's and Kamlet-Taft parameters were evaluated for the mixed solvents. A preferential solvation model was applied to analyze the solvation effect of the indicator by the different solvents used, and from these data useful information about solute-solvent and solvent-solvent interactions was deduced. Comparison with other thermophysical data reveals a relationship between the solvatochromic parameters and the partial molar volumes, mainly in water-containing solvents.
引用
收藏
页码：3024 / 3029
页数：6
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