几种典型咪唑类离子液体的红外光谱研究

Several typical imidazole-based ionic liquids were screened and purified, including 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium tetrafluoroborate and 1-butyl-3-methylimidazolium hexafluorophosphate. Based on the completion of infrared spectroscopy measurement, a systematic analysis of the chemical structures and infrared absorption rules of these ionic liquids was carried out. The experimental results show that the positions and shapes of the absorption peaks in the infrared spectrum are consistent with the structures of the ionic liquids, and the ionic liquids can be accurately studied qualitatively by infrared spectroscopy. The relevant content will play a certain role in promoting the research and application of imidazole-based ionic liquids.

筛选并纯化了几种典型的咪唑类离子液体，包括1-丁基-3-甲基咪唑氯盐、1-丁基-3-甲基咪唑四氟硼酸盐和1-丁基-3-甲基咪唑六氟磷酸盐。在完成红外光谱测定的基础上，对这些离子液体的化学结构和红外吸收规律进行了系统的分析。实验结果表明，红外光谱中吸收峰的位置和形状与离子液体的结构一致，可以通过红外光谱对离子液体进行精确的定性研究。有关内容对咪唑类离子液体的研究和应用将起到一定的推动作用。