Spectroscopic evaluation of chiral and achiral fluorescent ionic liquids

被引：21

作者：

Marwani, Hadi M. ^{[1
]}

机构：

[1] King Abdulaziz Univ, Dept Chem, Jeddah 21589, Saudi Arabia

来源：

CENTRAL EUROPEAN JOURNAL OF CHEMISTRY | 2010年 / 8卷 / 04期

关键词：

Ionic liquids; Metathesis reaction; NMR; UV-Vis; Fluorescence; DYNAMIC STOKES SHIFT; SOLVATION DYNAMICS; POLARITY; SOLVENT; COMPLEXES; ANIONS; FLUIDS; DYE; IR;

D O I：

10.2478/s11532-010-0062-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, spectroscopic investigation of chiral and achiral room temperature ionic liquids is achieved. New ionic liquids were prepared via metathesis, accomplished by the reaction of either L-phenylalanine ethyl ester hydrochloride, chlorpromazine hydrochloride or 1,10-Phenanthroline monohydrate hydrochloride with lithium bis(trifluoromethane) sulfonamide in water. The resulting ionic liquids were produced in high yield and purity. The results obtained by use of H-1 NMR and IR experiments were in very good agreement with the chemical structures of the synthesized ionic liquids. In addition, the results of thermal gravimetric analysis suggested that these ionic liquids have good thermal stability. UV-Vis and fluorescence spectroscopy measurements indicated that these ionic liquids are strongly optically absorbent and fluorescent. Lastly, time-based fluorescence steady-state measurements demonstrated the high photostability of these ionic liquids.

引用

页码：946 / 952

页数：7

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