Dear useres,

I'll be most thankful for any help with the following matter:

While running Gaussian 16, opt+freq with CCSD(T) and mixed basis sets, I keep getting zero for all IR intensities. This has occurred in two separated cases with different molecules.

1. Are the IR intensities calculated automatically in the case of CCSD(T) or do I need to set up another option and/or IOp?

2. If the intensities are calculated and are in fact zero, how can I see the values of the transition state dipole and its derivative for the computed molecule?

I thank you in advance for all your help,

Arik