Characterizing ionic liquids on the basis of multiple solvation interactions
Characterizing ionic liquids on the basis of multiple solvation interactions
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DOI：
10.1021/ja028156h
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发表时间：
2002-11-27
影响因子：
15
通讯作者：
Armstrong, DW
中科院分区：
文献类型：
--
作者：
Anderson, JL;Ding, J;Armstrong, DW
室温离子液体（RTILs）在许多化学应用中都很有用。最近的出版物试图用经验溶剂极性量表来确定RTILs的极性。结果表明，大多数rtil具有相似的极性。然而，当RTILs用作有机合成中的溶剂、基质辅助激光解吸/电离（MALDI）质谱中的基质、液-液萃取和气相色谱中的固定相时，RTILs的表现却截然不同。本研究中提出的工作使用线性自由能方法来表征17个RTILs，基于它们与探针溶质分子的不同多重溶剂化相互作用。该模型提供的数据可用于帮助确定对特定化学应用重要的相互作用和性质。
Room-temperature ionic liquids (RTILs) are useful in many chemical applications. Recent publications have attempted to determine the polarity of RTILs using empirical solvent polarity scales. The results have indicated that most RTILs have similar polarities. Nevertheless, RTILs are capable of behaving quite differently when used as solvents in organic synthesis, matrixes in matrix-assisted laser desorption/ ionization (MALDI) mass spectrometry, liquid-liquid extraction, and as stationary phases in gas chromatography. The work presented in this study uses a linear free energy approach to characterize 17 RTILs on the basis of their distinct multiple solvation interactions with probe solute molecules. This model provides data that can be used to help identify the interactions and properties that are important for specific chemical applications.