Temperature-dependent structural changes of [Bmim]FeCl4 magnetic ionic liquid characterized by an in-situ X-ray absorption fine structure

doi:10.1016/j.cclet.2019.05.028

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	Temperature-dependent structural changes of [Bmim]FeCl4 magnetic ionic liquid characterized by an in-situ X-ray absorption fine structure
	Jiang, FL ; Peng, H ; Li, C ; Fu, HY ; Wu, GZ
刊名	CHINESE CHEMICAL LETTERS
	2020
卷号	31 期号:3 页码:801-804
关键词	AB-INITIO FE EDGE
ISSN号	1001-8417
DOI	10.1016/j.cclet.2019.05.028
文献子类	期刊论文
英文摘要	The temperature-dependent structural changes in 1-butyl-3-methylimidazolium tetrafluoride ([Bmim]FeCl4) magnetic ionic liquid (MIL) were investigated by using in-situ X-ray absorption fine structure (XAFS) combined with Raman spectroscopy and DFT calculations. XAFS results revealed that the coordination number and bond length of Fe-Cl in the anion of [Bmim]FeCl4 MIL decreased with increments in temperature. These results directly reflected the dissociation of tetrahedral structure [FeCl4](-), and the formation of bridge-chain [Fe2Cl5](+), and [FeCl2](+) species in the anion of [Bmim]FeCl4 MIL. These behaviors indicated that [FeCl4](-) dissociation was endothermic, and was promoted by increased temperature. The results obtained through XAFS were in agreement with those obtained through Raman spectroscopy and DFT calculations. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33185]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Shanghai Jiao Tong Univ, Inst Fuel Cells, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Jiang, FL,Peng, H,Li, C,et al. Temperature-dependent structural changes of [Bmim]FeCl4 magnetic ionic liquid characterized by an in-situ X-ray absorption fine structure[J]. CHINESE CHEMICAL LETTERS,2020,31(3):801-804.
APA	Jiang, FL,Peng, H,Li, C,Fu, HY,&Wu, GZ.(2020).Temperature-dependent structural changes of [Bmim]FeCl4 magnetic ionic liquid characterized by an in-situ X-ray absorption fine structure.CHINESE CHEMICAL LETTERS,31(3),801-804.
MLA	Jiang, FL,et al."Temperature-dependent structural changes of [Bmim]FeCl4 magnetic ionic liquid characterized by an in-situ X-ray absorption fine structure".CHINESE CHEMICAL LETTERS 31.3(2020):801-804.