Hi, Sergio,
You wrote: "What is the best method to calculate energies of reactions
involving radicals? Is compound methods like CBS-Q as good choice?"
I think I could give some answers for your questions. Please show me
what reaction(s), free radicals are you interested in. I would point out the
values of the BDEs (bond dissociation energies), heats of formation, and
more.
Yu-Ran Luo, Ph. D.
http://molenergetics.simplenet.com