Note

This website is presently under development. The primary website for MOPAC is still http://openmopac.net until the majority of its contents have been migrated here.

N**2

In excited state COSMO calculations, the refractive index, squared, is set to n.nn.  By default, a value of 2.0 is used.  The effect of N**2 is to modify the dielectric energy.