Department of Chemistry and Research Institute of Basic Science, Kyung Hee University, 1 Hoegi-dong, Dongdaemoon-gu, Seoul 130-701, Rep. of Korea.
Phys Chem Chem Phys. 2010 Feb 28;12(8):1812-6. doi: 10.1039/b915989d. Epub 2009 Nov 7.
Imidazolium-based ionic liquids (ILs) bearing an alkylphosphite anion, were highly efficient for the selective removal of acetylenes in olefins. Comparison of solubility data at 313 K and at atmospheric pressure shows that the solubilities of acetylene and propyne in 1,3-dimethylimidazolium methylphosphite ([DMIM][MeHPO(3)]) are about 45 and 20 times higher than those of ethylene and propylene, respectively. Computational and (1)H NMR results clearly demonstrate that there are substantial interactions between the acidic hydrogen atom or atoms of acetylenes and the phosphite anion.
基于咪唑的离子液体（ILs）带有烷基膦酸根阴离子，对于烯烃中炔烃的选择性去除非常有效。在 313K 和常压下的溶解度数据比较表明，乙炔和丙炔在 1,3-二甲基咪唑甲基膦酸酯([DMIM][MeHPO(3)])中的溶解度分别约为乙烯和丙烯的 45 倍和 20 倍。计算和（1）H NMR 结果清楚地表明，炔烃的酸性氢原子或原子与膦酸根阴离子之间存在大量相互作用。
