| 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; Li XD(李晓东)
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| 2017 | |
| Source Publication | JOURNAL OF CHEMICAL PHYSICS
 |
| ISSN | 0021-9606 |
| EISSN | 1089-7690 |
| Volume | 146Issue:9Pages:94502 |
| Subtype | Article |
| Abstract | 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. |
| DOI | 10.1063/1.4977044 |
| WOS Keyword | RAMAN-SPECTROSCOPY ; LIQUIDS ; SOLVENTS ; TETRAFLUOROBORATE ; CRYSTALS ; DYNAMICS ; METHYL ; PHASE |
| Indexed By | SCI ; EI ; SCOPUS ; ADS |
| Language | 英语 |
| WOS Research Area | Chemistry ; Physics |
| WOS Subject | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
| WOS ID | WOS:000397312800054 |
| EI Accession Number | 20171003424394 |
| EI Keywords | Chlorine compounds - Conformations - Ionic liquids - Isomers - Mass spectrometry - Positive ions - X ray diffraction |
| EI Classification Number | 801 Chemistry - 801.4 Physical Chemistry - 804 Chemical Products Generally |
| ADS Bibcode | 2017JChPh.146i4502C |
| ADS URL | https://ui.adsabs.harvard.edu/abs/2017JChPh.146i4502C |
| ADS CITATIONS | https://ui.adsabs.harvard.edu/abs/2017JChPh.146i4502C/citations |
| Citation statistics |
Cited Times:2 [ADS]
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| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/284798 |
| Collection | 多学科研究中心 粒子天体物理中心 |
| Affiliation | 中国科学院高能物理研究所 |
| First Author Affilication | Institute of High Energy |
| 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):94502. |
| APA | Chen, FJ.,You, TT.,Yuan, Y.,Pei, CY.,Ren, XT.,...&李晓东.(2017).Pressure-induced structural transitions of a room temperature ionic liquid-1-ethyl-3-methylimidazolium chloride.JOURNAL OF CHEMICAL PHYSICS,146(9),94502. |
| 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):94502. |
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