Synthesis, Characterization, Thermal Analyses, and Spectroscopic Properties of Novel Naphthyl-Functionalized Imidazolium Ionic Liquids


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Resumo

A series of novel ionic liquids based on naphthyl-functionalized imidazolium cation have been prepared. Their structure was characterized by NMR. The thermal stabilities of the prepared liquids were studied by thermal gravimetric analysis. The new ionic liquids containing NTf-2 anion display significantly higher thermal stabilities (>400°C). Anion exchange to PF-6, BF-4, and Br decreases the thermal stabilities of such ionic liquids. Fluorescence and UV–Vis absorption spectroscopy were used to study the spectroscopic properties of the ionic liquids. Compared with common ionic liquids, the described ionic liquids provide robust fluorescence properties and remarkably increased UV–Vis absorption. This research may enrich the field of functionalized ionic liquids and provide a platform for extension of ionic liquid applications.

Sobre autores

Meihuan Yao

School of Chemistry and Chemical Engineering; State Key Laboratory of Solid Lubrication

Autor responsável pela correspondência
Email: gtymh@163.com
República Popular da China, Xinxiang, 453007; Lanzhou, 730000

Qing Li

School of Chemistry and Chemical Engineering

Email: gtymh@163.com
República Popular da China, Xinxiang, 453007

Yanqiu Xia

School of Energy and Mechanical Engineering

Email: gtymh@163.com
República Popular da China, Beijing, 102206

Yongmin Liang

State Key Laboratory of Solid Lubrication

Email: gtymh@163.com
República Popular da China, Lanzhou, 730000

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