Solvatochromic study on binary solvent mixtures with ionic liquids

被引：9
|
作者：
Koel, Mihkel [1 ]
机构：
[1] Tallinn Univ Technol, Inst Chem, EE-12618 Tallinn, Estonia
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES | 2008年 / 63卷 / 7-8期
关键词：
binary solvent mixtures; solvent effects; solvatochromism; pyridinium N-phenolate betaine dyes; Nile Red; ionic liquids;
D O I：
10.1515/zna-2008-7-818
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：
Solvent effects oil 2,6-dichloro-4-(2,4,6-triphenyl-pyridinium-1-yl)phenolate [E-T(33) dye] and 7-diethylamino-3,4-benzophenoxazine-2-one (Nile Red) in binary mixtures of organic solvents (acetone. acetonitrile. propylene carbonate, methanol and ethane-1,2-diol) with 1,3-dialkyl imidazolium-based ionic liquids were studied by UV-visible spectroscopy. Highly nonlinear behaviour of mixtures of alcohols and ionic liquids was found. A preferential solvation model was applied to the data obtained oil solvatochromic shifts over the entire mixing range. It is fitting the data well for alcohol mixtures and for other solvent mixtures with different ionic liquids.
引用
收藏
页码：505 / 512
页数：8
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