The strongest type of non covalent interaction is between two ionic groups of opposite charge that occur between hydrocarbon is London force.
Explanation:
London dispersion forces:
- Weakest inter-molecular forces are the forces that cause non-polar substances to form solids when the temperature is lowered sufficiently. Exist in molecules such as F[tex]_{2}[/tex]
, O[tex]_{2}[/tex]
, N[tex]_{2}[/tex] and even in mono-atomic molecules He, Ne, Ar, etc.
- The electron of a neutral molecule keeps on oscillating concerning nuclei of atoms. As a result of an instant, a positive charge may concentrate in one region and a negative charge in another region in the same molecule causing the 'self-polarization' of the molecule.
- This polarized molecule may induce a dipole moment in a neighboring molecule
. The second atom can be distorted by the appearance of the dipole in the first atom or molecule resulting in the electrostatic attraction between 2 atoms or molecules.
