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.

DDMIN

The minimum size of the trust radius in EF and TS is set to n.nn. If DDMIN is not set, the default of 0.001 is used. Set DDMIN to a small number, e.g. 0.00001, if the starting geometry is very near to the optimized geometry.