溶剂变色
极化率
离子液体
极性(国际关系)
化学
溶剂极性
溶剂
乙二醇
尼罗河红
离子键合
水溶液
溶剂效应
有机化学
计算化学
物理化学
化学物理
分子
催化作用
离子
光学
生物化学
物理
荧光
细胞
作者
Philip G. Jessop,David A. Jessop,Dongbao Fu,Lam Phan
出处
期刊:Green Chemistry
[The Royal Society of Chemistry]
日期:2012-01-01
卷期号:14 (5): 1245-1245
被引量:467
摘要
Solvatochromic data have been collected from the literature or newly measured for 83 molecular solvents, 18 switchable solvents, and 187 ionic liquids that have been cited in the green chemistry literature. The data include the normalized Reichardt's parameter (ENT), the Nile red λmax, and the Kamlet–Taft parameters (α, β, and π*). Disagreements within the literature about the properties of glycerol and poly(ethylene glycol) have been resolved with new data. The switching of a switchable-polarity solvent (also known as a reversible ionic liquid) by CO2 causes a significant increase in polarity/polarizability (π*) but no change in the basicity (β). A switchable-hydrophilicity solvent undergoes an even greater change in polarity because it merges with an aqueous phase upon exposure to CO2. Trends observed from the data of ionic liquids are presented, along with concerns about the best method for determining the Kamlet–Taft parameters.
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