Unique Structure and Solute –Solvent Interaction in Imidazolium based Ionic Liquids

Ionic liquids have attracted wide attention
lately and their potential applications in different
areas have been explored. Most of the current
researches on ionic liquids are concentrated on
investigating what can be done by ionic liquids and
why they work the way they do. The latter provide the
insight into the molecular factors that determine their
properties ranging from quantitative thermodynamic
and physical data and qualitative tends that guide in
searching the best ionic liquids for particular
purpose.
Many of the applications rely upon the
interaction of ionic liquids with other components.
Ionic liquids exhibit nanoscale phase segregation into
polar and nonpolar- regions. The nanoscale selforganisation
is the result of interplay between
Coulomb and van der Waals interactions which leads
to the formation of high charge density permeated
non-polar regions. This characteristic determines how
different molecular solutes interact with certain
domain of the ionic liquids and distinct local
environment. However, the complexities of the nature
and size of cation-anion interactions and
intermolecular forces in liquids phase give rise to
controversies. This review discusses the current
development in understanding molecular structure,
cation- anion interaction, intermolecular forces and
their effects of solvation. This work is mainly
concentrated on imidazolium based ionic liquids.
Keywords: Solute–Solvent Interaction, Imidazolium based
Ionic Liqui