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

页码：3024 / 3029

页数：6

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