I have been trying to use the morphology module in Material Studio to calculate the plane energies of an oxide compoung with C2/m symmetry. However, the crystal I have built always produces the following errors when I try to run the calculation (equilibrium morphology), "The input crystal contains an infinite network of atoms. The calculations require that the crystal is formed from isolated molecules". I cannot assign molecules in the crystal growth prompt of the morphology module as "There are no molecules in the current document". The Help documentation does not address this issue.

I also obtained the same results when I tried using any of the oxides from the sample folder included with MS. I was just wondering if anyone has ever run into similar problems, and how they were resolved.

Thanks,

Bob