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题名:
Pressure-induced structural transitions of a room temperature ionic liquid-1-ethyl-3-methylimidazolium chloride
作者: Chen, FJ; You, TT; Yuan, Y; Pei, CY; Ren, XT; Huang, YW; Yu, ZH; Li, XD; Zheng, HY; Pan, YX; Yang, K; Wang, L
刊名: JOURNAL OF CHEMICAL PHYSICS
出版日期: 2017
卷号: 146, 期号:9, 页码:-
DOI: 10.1063/1.4977044
文章类型: 期刊论文
英文摘要: 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.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000397312800054
ISSN号: 0021-9606
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27420
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
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,2017-01-01,146(9):-.
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文件名: Pressure-induced structural transitions of a room temperature ionic liquid-1-ethyl-3-methylimidazolium chloride.pdf
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