Can't plot MO from .fchk generated from Q-Chem 6.2

Questions
#1

Hi,

I recently encountered an issue that I won’t be able to plot canonical orbitals on IQmol from the .fchk generated from a job (like TDDFT for example) run on Q-Chem 6.2. There is nothing I can do with the ‘Surfaces’ section in IQmol. I believe there is something with .fchk from 6.2 version since I used 6.0 version in the past and it worked totally fine.

Thank you very much

#2

Your problem seems similar to this issue Does the fchk file generated by Qchem 6.2.2 not include orbital coefficients and orbital energies? - Questions - Q-Chem Talk