The local composition behavior in binary solutions of diethylamine acetate ionic liquid

The local composition behavior in binary solutions of diethylamine acetate ionic liquid
复制标题

二乙胺醋酸盐离子液体二元溶液中的局部组成行为

DOI:
10.1016/j.molliq.2015.11.008
复制
发表时间:
2016
影响因子:
6
通讯作者:
许映杰
许映杰
中科院分区:
化学2区
文献类型:
--
作者:
朱霄;张焕;许映杰

文献摘要

参考文献

被引文献

相似文献

为了揭示铵基离子液体溶液中微观结构的不均匀性,合成了乙酸二乙胺(DEAA),并在298.15 K下测量了DEAA/水、DEAA/DMSO和DEAA/丙酮3种不同组成的二元溶液的浓度依赖性1H NMR谱。用~ 1HNMR局部组成模型关联了DEAA的质子化学位移。结果表明,在富含DEAA的区域,DEAA的自缔合作用占主导地位,而不是DEAA-溶剂相互作用。而在富溶剂区,DEAA主要与溶剂分子相互作用,说明溶剂的作用大大破坏了DEAA的网络结构。溶剂对DEAA结构的破坏能力为:水> DMSO >丙酮,这与溶液理化性质的变化相一致。
In order to uncover the micro-structural heterogeneities in the solutions of ammonium-based ionic liquids, diethylamine acetate (DEAA) has been synthesized and concentration-dependent1H NMR spectra of three binary solutions, namely DEAA/water, DEAA/DMSO and DEAA/acetone, at different compositions have been measured at 298.15 K. The proton chemical shifts of DEAA have been correlated using the1H NMR local composition (LC) model. It has been found that the self-associations of DEAA were predominant instead of DEAA–solvent interactions within DEAA-rich region. However within solvent-rich region, DEAA could mainly interact with solvent molecules, indicating that the network of DEAA has been greatly destroyed by effects of solvents. In addition, the ability of solvents to break down the structure of DEAA followed in such order: water > DMSO > acetone, which was consistent with changes of physicochemical properties of these solutions.
DOI: 10.1021/jp0671421
发表时间: 2007-05-10
影响因子: 3.3
作者:
Jiang, Wei;Wang, Yanting;Voth, Gregory A.
通讯作者: Voth, Gregory A.
DOI: 10.1021/je200707b
发表时间: 2012-01
影响因子: --
作者:
Yingjie Xu;Jia Yao;Congmin Wang;Haoran Li
通讯作者: Yingjie Xu;Jia Yao;Congmin Wang;Haoran Li
DOI: 10.1007/s10924-013-0617-8
发表时间: 2014-03
影响因子: 5.3
作者:
Shifeng Deng;Jia Cheng;Xiaojie Guo;Long Jiang;Jinwen Zhang
通讯作者: Shifeng Deng;Jia Cheng;Xiaojie Guo;Long Jiang;Jinwen Zhang
DOI: 10.1021/jp076467e
发表时间: 2008-01
期刊: The journal of physical chemistry. B
影响因子: --
作者:
Yang Zhao;Shan Gao;Jianji Wang;Junming Tang
通讯作者: Yang Zhao;Shan Gao;Jianji Wang;Junming Tang
DOI: 10.1016/j.fluid.2013.06.011
发表时间: 2013-09
影响因子: 2.6
作者:
M. Zakrzewska;Andreia A. Rosatella;Svilen P. Simeonov;C. Afonso;Vesna Najdanovic-Visak;M. N. Ponte
通讯作者: M. Zakrzewska;Andreia A. Rosatella;Svilen P. Simeonov;C. Afonso;Vesna Najdanovic-Visak;M. N. Ponte