Effects of electrostatic interaction on the properties of ionic liquids correlated with the change of free volume

2017 ◽  
Vol 19 (7) ◽  
pp. 5389-5395 ◽  
Author(s):  
Zhengjian Chen ◽  
Yanan Huo ◽  
Panfeng Long ◽  
Hujun Shen ◽  
Jong-Min Lee

Nearly half of the free volume was found to be compressed by the strong inter-ion electrostatic interaction in ionic liquids, which shows an inner connection with other properties.

2015 ◽  
Vol 17 (46) ◽  
pp. 30978-30982 ◽  
Author(s):  
Anne Knorr ◽  
Koichi Fumino ◽  
Anne-Marie Bonsa ◽  
Ralf Ludwig

Spectroscopic evidence for cation–cation interaction in ionic liquids. The repulsive electrostatic interaction is overcome by hydrogen bonding between ions of like charge.


2011 ◽  
Vol 13 (30) ◽  
pp. 13585 ◽  
Author(s):  
Shushi Suzuki ◽  
Yasuhiro Ohta ◽  
Takashi Kurimoto ◽  
Susumu Kuwabata ◽  
Tsukasa Torimoto

2018 ◽  
Vol 57 (40) ◽  
pp. 13519-13527 ◽  
Author(s):  
Yuqi Huang ◽  
Tian Ke ◽  
Yuqi Ke ◽  
Qilong Ren ◽  
Qiwei Yang ◽  
...  

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 429
Author(s):  
Amal Mechergui ◽  
Alsu I. Akhmetshina ◽  
Olga V. Kazarina ◽  
Maria E. Atlaskina ◽  
Anton N. Petukhov ◽  
...  

To properly design ionic liquids (ILs) adopted for gases separation uses, a knowledge of ILs thermodynamic properties as well their solubilities with the gases is essential. In the present article, solubilities of CO2 and H2S in bis(2-Ethylhexyl)sulfosuccinate based ILs were predicted using the conductor like screening model for real solvents COSMO-RS. According to COSMO-RS calculations, the influence of the cation change was extensively analyzed. The obtained data are used for the prediction of adequate solvent candidates. Moreover, to understand the intrinsic behavior of gases solubility the free volume of the chosen ILs and their molecular interactions with respectively CO2 and H2S were computed. The results suggest that hydrogen bonding interactions in ILs and between ILs and the gases have a pivotal influence on the solubility.


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