Questions tagged [free-software]

For questions asking for recommendations of matter modelling softwares available at no cost.

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Is there some free software to do Frank-Condon analysis?

I know Gaussian 16 can do it, but are there some free programs that can? For simple excited state calculations using TD-DFT, we can use NWChem and Octopus. Can these do Franck-Condon factors?