Study on the hydrophobicity of [Bmim]2[CuCl4] by two-dimensional correlation spectroscopy

被引：4
|
作者：
Fan, Zhaosheng [1 ,2 ]
Xu, Tongguang [1 ]
Jiang, Chengyong [1 ]
Wang, Lida [1 ]
Sun, Suqin [2 ]
Zhou, Qun [2 ]
机构：
[1] Shanghai Tobacco Grp Beijing Cigarette Factory Co, Technol Ctr, Tongzhou Dis, Beijing 101121, Peoples R China
[2] Tsinghua Univ, Dept Chem, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Minist Educ, Beijing 100084, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2022年 / 282卷
关键词：
Ionic liquid; FT-IR; 2DCOS; hydrophobicity; HYDROGEN-BONDING INTERACTIONS; CONTAINING IONIC LIQUIDS; TEMPERATURE; WATER; ATR;
D O I：
10.1016/j.saa.2022.121637
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
By dissolving copper chloride in [Bmim]Cl (1-butyl-3-methylimidazolium chloride), chloride ions can coordinate with copper ions and form [CuCl4](2-), thereby inducing the solution being hydrophobic. In the present work, hydrogen bonds between [Bmim](+) and anions are analyzed and discussed by two-dimensional correlation spectroscopy. Time-dependent attenuated total reflection spectroscopy (ATR-FTIR) is introduced to monitor the hygroscopic process of [Bmim](2)[CuCl4] and [Bmim]Cl in situ. Hygroscopic capacity and rate of [Bmim](2)[CuCl4] shrink compared with [Bmim]Cl. The change of water molecular clusters has been studied by second-derivative spectra in the hygroscopic process. The behaviors of water molecular in the two ionic liquids are also distinctive.
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页数：8
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