In these interactions ion’s field induces a dipole moment in a molecule. If μ is the induced moment in a field E, ‘α’ is the polarizability (assumed to be constant), then (26) (27) where FZ is the instantaneous force on the induced dipole (R >> δ) and the interaction energy at a given R, is (28) As the induced dipole is parallel to the field, so no angle (Fig. 1.2) appears in the expression. +Q + Fig. 1.2
(vii) Dipole-dipole interactions [20(c)]
These types of interactions are the important forces between polar molecules. For two permanent …show more content…
The magnitude of these forces (Fig 1.4) should be proportional to the product of two dipole divided by R3; However, the induced dipole as usual is given by , where E is field of first dipole and varies as . Fig. 1.4
Consequently, the induced dipole has a magnitude proportional to and the interaction between permanent and induced dipole must vary as . Numerous calculations yielded Eq. …show more content…
Their readiness to be recycled for use as solvents and /or catalysts;
7. High polar character caused by coulombic forces acting between the ions, they open up new ways for chemical reactions in homogenous as well as biphasic catalysis including biocatalysts [28,29].
8. Physical, chemical and biological properties of ionic liquids can be tuned by (a) switching anions or cations; (b) by designing specific functionalities into the cations and/or anions; and (c) by mixing two or more simple ionic liquids or ionic liquids with organic solvents.
Due to unique properties of ILs, researches on these liquids have the potential to impact on the daily lives of everyone in the world. It will not massively reduce industrial pollution but will improve working conditions for thousands of people and significantly help in the creation of job and wealth. Some important applications of ILs in industries/technologies are discussed in the later part of this