著者

遠藤 太佳嗣 西川 惠子

出版者

日本結晶学会

雑誌

日本結晶学会誌 (ISSN:03694585)

巻号頁・発行日

vol.58, no.1, pp.7-12, 2016-02-29 (Released:2016-03-02)

参考文献数

29

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Here we review our recent works on thermal phase behaviors of ionic liquids, 1-alkyl-3-methylimidazolium hexafluorophosphates ([Cnmim]PF6, n=1~4). Their complex thermal phase behaviors observed in calorimetric measurements were investigated at the molecular level using combined techniques of Raman spectroscopy, quantum chemical calculations, X-ray analyses, and nuclear magnetic resonance spectroscopy. It was demonstrated that the conformational flexibility of the side chain in the cation played a key role for thermal phase behaviors of some ILs as represented by [C4mim]PF6, nevertheless, which was not always the case for others as evidenced in [C1mim]PF6 results.