Physicochemical Properties of Nitrile-Functionalized Ionic Liquids
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- 作者：Qinghua Zhang ; Zuopeng Li ; Juan Zhang ; Shiguo Zhang ; Laiying Zhu ; Jing Yang ; Xiaoping Zhang ; Youquan Deng
- 刊名：Journal of Physical Chemistry B
- 出版年：2007
- 出版时间：March 22, 2007
- 年：2007
- 卷：111
- 期：11
- 页码：2864 - 2872
- 全文大小：162K
- 年卷期：v.111,no.11(March 22, 2007)
- ISSN：1520-5207
文摘
A series of ionic liquids (ILs) based on nitrile-functionalized imidazolium, pyridinium, and quaternaryammonium as cations and chlorides and tetrafluoroborate, hexafluorophosphate, dicyanamide, and bis(trifluoromethanesulfonyl)imide as anions have been prepared and characterized. The physicochemicalproperties such as spectroscopic, thermal, solubility, surface, electrochemical, tribological, and toxic propertieswere comparatively studied. The results showed that the incorporation of a CN group to cations could resultin remarkable changes in these properties. The reason resulting in such remarkable differences in the propertiesmay be attributed to the conformational changes in the imidazolium groups caused by the interaction betweenthe CN group with other neighboring cations or anions and the enhancement in hydrogen-bonding interactionsdue to the incorporation of a CN group.