How to calculate S1 and S2 excited states from ground state S0 of Gaussian result?

I'm studying about azobenzene. The S1(nπ*) and S2(ππ*) are important in transition from trans to cis and vice versa. And, I'm looking for a way to get S1 and S2 excited states from simple...

08 August 2019 495 6 View