2. Dipole- Dipole Force The dipole-dipole force is an interaction between polar molecules. A dipole is two
charges separated by a distance. Therefore, dipole-dipole force is a result of
molecules with positive end in one side and negative end on the other side. The
dipole-dipole force can have along range of interaction and can be strong, if the dipole
moment is high. If this is the case, the dipole moment between molecules is also
high. Example, F-Se: F(4.)--Se (2.4) has electronegativity difference of 1.6 therefore it
is polar.
F-SeF-Se​