One of
the Distinctive Properties of Ionic Liquids over Molecular Solvents
and Inorganic Salts: Enhanced Basicity Stemming from the Electrostatic
Environment and “Free” Microstructure
Qiwei Yang
Huabin Xing
Zongbi Bao
Baogen Su
Zhiguo Zhang
Yiwen Yang
Sheng Dai
Qilong Ren
10.1021/jp500790r.s001
https://acs.figshare.com/articles/journal_contribution/One_of_the_Distinctive_Properties_of_Ionic_Liquids_over_Molecular_Solvents_and_Inorganic_Salts_Enhanced_Basicity_Stemming_from_the_Electrostatic_Environment_and_Free_Microstructure/2309671
The basicity of ionic liquids (ILs)
underlies many important IL-based processes including the dissolution
and conversion of cellulose, the capture of CO<sub>2</sub>, and metal
catalysis. In this work, we have disclosed the nature of the basicity
of ILs, i.e., the difference between the basicity of IL and the basicity
of the molecular solvent and inorganic salt, through a quantitative
electrostatic and electronic analysis of the molecular surface for
the first time. The results reveal one of the distinctive properties
of ILs (enhanced basicity over molecular solvents and inorganic salts
with the same basic site) stemming from their special electrostatic
environment and microstructure. The enhancement is significant, from
either the electrostatic aspect or the covalent aspect of basicity.
The peculiar electrostatic environment of ILs leads to stronger basicity
than similar molecular solvents, and the relatively freer microstructure
of ILs contributes to the enhancement of basicity over their inorganic
analogues. These results are highly instructive for better understanding
the unique value of ILs and designing novel ILs to improve the efficiency
of basicity-related processes.
2014-04-03 00:00:00
covalent aspect
Distinctive Properties
Electrostatic Environment
CO
Molecular Solvents
Inorganic Salts
Ionic Liquids
novel ILs
basicity
metal catalysis
Enhanced Basicity Stemming