a generalization for anisotropic particles that includes both attractive and repulsive forces between molecules that have translational and orientational degrees of freedom.
[ GO DIRECT TO LIQUID CRYSTALS with COLLOIDS ]
and are scaling parameters.
The shape anisotropy parameter is where . is the separation when the molecules are end to end and when they are side by side. The depth of the well is now expressed as: where and .
The parameter is related to the anisotropy in the well depth via
where is the ratio of well-depth for end to end and side by side.