含硫酸根和醚的表面活性离子液体对二氧化碳、氟化氢、硫化氢和水的亲和性
The Affinity of the Sulfate- and Ether-Containing Surface-Active Ionic Liquids to Carbon Dioxide, Hydrogen Fluoride, Hydrogen Sulfide, and Water
摘要：
新型功能化离子液体的开发是现代有机化学和物理化学中的一个重要挑战。最近，我们报道了表面活性离子液体含有两个众所周知的有机阳离子（1-丁基-3-甲基咪唑和四丁基铵）和两个表面活性阴离子（月桂基硫酸盐，月桂基醚硫酸盐）。在目前的工作中，我们调查的亲和力，这些离子化合物选择的小分子表现出实际的影响：水，氟化氢，硫酸氢盐，和二氧化碳。我们发现，硫酸基团，醚基团，和芳香族咪唑环的极性气体分子的物理吸附作出最强的贡献。反过来，四丁基铵阳离子、阴离子的饱和烃链和1-丁基-3-甲基咪唑鎓的烷基链的贡献显著较小。所报道的数据在石油工业中使用表面活性离子液体来捕获和储存不期望的和有毒的气体的背景下是有趣的。
英文摘要：
The development of novel task-specific ionic liquids (ILs) represents an essential challenge in modern organic and physical chemistries. Recently we reported surface-active ILs contained the two well-known organic cations (1-butyl-3-methylimidazolium and tetrabutylammonium) and the two surface-active anions (lauryl sulfate, lauryl ether sulfate). In the present work, we investigate the affinity of these ionic compounds to the selected small molecules that exhibit practical implications: water, hydrogen fluoride, hydrogen sulfate, and carbon dioxide. We identified that the sulfate group, the ether groups, and the aromatic imidazole ring make the strongest contributions to the physical sorption of the polar gas molecules. In turn, the tetrabutylammonium cation, the saturated hydrocarbon chain of the anions, and the alkyl chains of 1-butyl-3-methylimidazolium contribute to a significantly smaller extent. The reported data are interesting in the context of using surface-active ILs in the oil industry to capture and store undesirable and toxic gases.
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