CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
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
Source PublicationJOURNAL OF CHEMICAL PHYSICS
ISSN0021-9606
Volume146Issue:9Pages:-
Subtype期刊论文
AbstractIn 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
Indexed BySCI
Language英语
WOS IDWOS:000397312800054
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/27420
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
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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