Pressure-induced structural transitions of a room temperature ionic liquid-1-ethyl-3-methylimidazolium chloride
Chen, FJ; You, TT; Yuan, Y; Pei, CY; Ren, XT; Huang, YW; Yu, ZH; Li, XD; Zheng, HY; Pan, YX; Yang, K; Wang, L
2017
发表期刊JOURNAL OF CHEMICAL PHYSICS
ISSN0021-9606
卷号146期号:9页码:-
文章类型期刊论文
摘要In this paper, structural evaluations of a room temperature ionic liquid, 1-ethyl-3-methylimidazolium chloride ([EMIM] Cl), were systematically investigated at high pressures. Our Raman spectra, infrared spectra, and synchrotron X-ray diffraction investigations showthat crystalline [EMIM] Cl experienced structural instabilities at high pressures and underwent at least four successive structural transitions at around 5.8, 9.3, 15.8, and 19.1GPa, respectively. Notably, the abrupt emergence of photoluminescence from the sample at around 19.3 GPa, originated from the pressure-induced polymerization of the [EMIM](+) cations, as confirmed by the mass spectrometry experiments. Our results also indicate that high pressure significantly affected the conformational equilibrium of the [EMIM](+) cations. The structural transitions are influenced by the ion stacking modes determined by the hydrogen bonds and possibly by some chemical reactions in addition to the cation conformational isomers. Published by AIP Publishing.
DOI10.1063/1.4977044
收录类别SCI
语种英语
WOS记录号WOS:000397312800054
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27420
专题中科院上海应用物理研究所2011-2018年
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GB/T 7714
Chen, FJ,You, TT,Yuan, Y,et al. Pressure-induced structural transitions of a room temperature ionic liquid-1-ethyl-3-methylimidazolium chloride[J]. JOURNAL OF CHEMICAL PHYSICS,2017,146(9):-.
APA Chen, FJ.,You, TT.,Yuan, Y.,Pei, CY.,Ren, XT.,...&Wang, L.(2017).Pressure-induced structural transitions of a room temperature ionic liquid-1-ethyl-3-methylimidazolium chloride.JOURNAL OF CHEMICAL PHYSICS,146(9),-.
MLA Chen, FJ,et al."Pressure-induced structural transitions of a room temperature ionic liquid-1-ethyl-3-methylimidazolium chloride".JOURNAL OF CHEMICAL PHYSICS 146.9(2017):-.
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