Crystallization in Ionic Liquids: Synthesis, Properties, and Polymorphs of Uranyl Salts

doi:10.1021/cg501277d

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	Crystallization in Ionic Liquids: Synthesis, Properties, and Polymorphs of Uranyl Salts
	Qu, Feng; Zhu, Qian-Qian; Liu, Chun-Li
刊名	CRYSTAL GROWTH & DESIGN
	2014-12-01
卷号	14 期号:12 页码:6421-6432
ISSN号	1528-7483
DOI	10.1021/cg501277d
英文摘要	Crystallizations in uranyl-containing ionic liquids yielding crystals {X}(a){[UO2](b)[Y](c)} with selected anions and cations (X = [Bmim](+) for Y = Cl-, NO3-, and SCN-; Y = Cl- for X = [Emim](+), [Emmim](+), [Bmim](+), and [Bmmim](+); Emim = l-ethyl-3-methyl-imidazolium, Emmim = l-ethyl-2,3-dimethylimidazolium, Bmim = l-butyl-3-methylimidazolium, and Bmmim = l-butyl-2,3-dimethylimidazolium) were performed herein. Through standard crystallographic analyses, Hirshfeld surface analyses, and multiple characterization techniques, compounds with common cations/anions were investigated. For compounds [Bmim](2)[(UO2)(2)(mu-OH)(2)(NO3)(4)] (1), [Bmim](3)[UO2(NCS)(5)] (2), and [Bmim](2)[UO2Cl4] (3TT and 3TG), common [Bmim](+) cations with different conformations were studied with respect to packing and interactions (for 1). The coordinated [(UO2)(2)(mu-OH)(2)(NO3)(4)](2), [UO2(NCS)(5)](3), and [UO2Cl4](2) anions that have historically been related to nuclear fuel cycles were demonstrated with respect to geometry and distortion. For compounds with common [UO2Cl4](2) anions [Emim](2)[UO2Cl4] (4), [Emmim](2)[UO2Cl4] (5), [Bmmim](2)[UO2Cl4] (6), 3TT, and 3TG, observed interionic interactions that have been previously impeded by limited structural information were discussed fully in relation to different cations and temperatures. Moreover, multistep phase transformations of 2, which have been undefined in solution studies, have been identified through differential scanning calorimetry analyses and polarizing optical microscopy. The polymorph transformations between 3TT and 3TG in solution, as controlled by uranyl concentration, were studied using optical microscopy and powder X-ray diffraction. The thermal stability, IR/Raman, and UVvis/luminescence spectra of these compounds were also investigated.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000345884000031
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52647]
专题	中国科学院化学研究所
通讯作者	Liu, Chun-Li
作者单位	Peking Univ, Coll Chem & Mol Engn, Fundamental Sci Lab Radiochem & Radiat Chem, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Qu, Feng,Zhu, Qian-Qian,Liu, Chun-Li. Crystallization in Ionic Liquids: Synthesis, Properties, and Polymorphs of Uranyl Salts[J]. CRYSTAL GROWTH & DESIGN,2014,14(12):6421-6432.
APA	Qu, Feng,Zhu, Qian-Qian,&Liu, Chun-Li.(2014).Crystallization in Ionic Liquids: Synthesis, Properties, and Polymorphs of Uranyl Salts.CRYSTAL GROWTH & DESIGN,14(12),6421-6432.
MLA	Qu, Feng,et al."Crystallization in Ionic Liquids: Synthesis, Properties, and Polymorphs of Uranyl Salts".CRYSTAL GROWTH & DESIGN 14.12(2014):6421-6432.