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题名:
First-principle investigation of the structure and vibrational spectra of the local structures in LiF-BeF2 Molten Salts
作者: Dai, JX; Han, H; Li, QN; Huai, P
刊名: JOURNAL OF MOLECULAR LIQUIDS
出版日期: 2016
卷号: 213, 期号:-, 页码:17—22
关键词: INITIO MOLECULAR-DYNAMICS ; SPACE GAUSSIAN PSEUDOPOTENTIALS ; INFRARED-SPECTRUM ; LIQUID WATER ; PROTONATED PEPTIDES ; RAMAN-SPECTRA ; SPECTROSCOPY ; SIMULATIONS ; DENSITY ; MIXTURES
DOI: 10.1016/j.molliq.2015.10.053
通讯作者: Li, QN ; Huai, P (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
文章类型: 期刊文献
英文摘要: In this article, the identified local structures are investigated using Density Functional theory to reveal the effects of the interaction on the geometry and vibrational dynamics of the ternary-system. Ab initio molecular dynamics simulation is used to simulate the identified clusters in gas phase and the salts in condensed phase. Vibrational spectra are computed either through normal mode analysis or Fourier transform of the autocorrelation function of the total dipole moment. We find that two of the most intense bands can be taken as the signature of formation of the local structures (BeF42-, Be2F7-3, and Be3F104-). The signature bands are found in the correspondent region in the spectra of the salts, indicating the existence of the local structures. Vibrational density of states spectra found that the feature frequency of Li atoms is as low as 400 cm(-1), suggesting it is not tightly bound to other species. Current study sheds some light into understanding of the interaction and dynamics of the molten salt. (C) 2015 Elsevier B.V. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000369462300004
ISSN号: 0167-7322
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25727
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:
Dai, JX,Han, H,Li, QN,et al. First-principle investigation of the structure and vibrational spectra of the local structures in LiF-BeF2 Molten Salts[J]. JOURNAL OF MOLECULAR LIQUIDS,2016-01-01,213(-):17—22.
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