羧基、羟基功能化离子液体的合成与表征

Synthesis and Characterization of Carboxyl-and Hydroxyl-Functionalized Ionic Liquids

设计、合成了两种羧基、羟基功能化离子液体,1-羧丁基-3-甲基咪唑溴盐和1-羟乙基-3-甲基咪唑溴盐。在此基础上,通过红外光谱、核磁共振波谱对产物的化学组成、结构进行了表征与分析。结果证明,图谱中的峰型、位置和种类与理论值吻合较好,且未发现明显的杂质峰。实验顺利获得了目标离子液体,产物的纯度和质量较好。有关工作将为此类离子液体的研究和应用提供重要的科学依据。

Two carboxyl- and hydroxyl- functionalized ionic liquids, 1-earboxybutyl-3-methylimidazolium bromide and 1- hydroxyethyl- 3- methylimidazolium bromide, were designed and synthesized. On this basis, the chemical composition of these ionic liquids was characterized by infrared spectra and nuclear magnetic resonance spectroscopy. All the corresponding chemical shifts and wavenumbers of peaks were consistent with theoretical values. No impurity peaks were found in the spectra. According to the experimental results, all these ionic liquids had high purity and quality. It was expected that present work will provide important scientific foundation for the relevant research and application.