Can someone indicate a reliable protocol to obtain the fluorescence spectrum of an organic molecule in GAUSSIAN03?

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Santosh Kumar Behera

First you have to do CIS optimization of the molecule. After getting a CIS optimized Structure, you have to do TDDFT calculation from there you will get a fluorescence spectrum of the molecule.

This may help you.

Arnaldo F. Silva

Shouldn't i optimize a chosen excited state as well, and get its the vertical emissions?