CCL: prediction of fluorescence?

["Victor M Rosas-Garcia" <rosas.victor||gmail.com>]

 Sent to CCL by: "Victor M Rosas-Garcia" [rosas.victor/./gmail.com]
 Hello everybody,
 I was recently approached by a colleague, asking me if I could predict
 fluorescent behavior of a molecule. I understand that TD-DFT can be used for
 calculating excited states and things like UV-vis spectra, after a cursory
 review of the literature I have found some papers dealing with calculation of
 excited states of fluorescent molecules, but as far as predicting if a molecule
 will *actually* fluoresce, I don't know how to calculate this, or even if it is
 possible.
 The species of interest are around 300 amu, so probably I will not be able to do
 some super-duper cc-pV5Z calculations or the like.
 Any pointers?
 Victor