Cooperative effect from cation and anion of pyridine-containing anion-based ionic liquids for catalysing CO_2 transformation at ambient conditions  

作　　者：Guangfeng Yuan Yanfei Zhao Yunyan Wu Ruipeng Li Yu Chen Dongmei Xu Zhimin Liu 

机构地区：[1]College of Chemical and Environmental Engineering, Shandong University of Science and Technology [2]Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry,Chinese Academy of Sciences

出　　处：《Science China Chemistry》2017年第7期958-963,共6页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(21403252,21533011);the Chinese Academy of Sciences(QYZDY-SSW-SLH013)

摘　　要：Pyridine-containing anion-based ionic liquids(PA-ILs) with two kinds of interaction sites to bind CO_2, e.g., [P4444][2-OP], were found to be highly efficient for catalysing the cycloaddition reactions of atmospheric CO_2 with epoxides at room temperature under metal-and halogen-free conditions, producing a series of cyclic carbonates in high yields. It was demonstrated that the cooperative interaction from two interaction sites in the anions of PA-ILs activated CO_2, while the cation activated the epoxides substrates via coordination to the central P+ unit, thus resulting in the high activity of the IL catalysts.Pyridine-containing anion-based ionic liquids（PA-ILs） with two kinds of interaction sites to bind CO2, e.g., [P4444][2-OP], were found to be highly efficient for catalysing the cycloaddition reactions of atmospheric CO2 with epoxides at room temperature under metal-and halogen-free conditions, producing a series of cyclic carbonates in high yields. It was demonstrated that the cooperative interaction from two interaction sites in the anions of PA-ILs activated CO2, while the cation activated the epoxides substrates via coordination to the central P＋ unit, thus resulting in the high activity of the IL catalysts.

关 键 词：ionic liquids CO2 transformation cyclic carbonates atmospheric pressure room temperature 

分 类 号：O643.36[理学—物理化学]