Multiwfn forum

Good Morning, I came across the possibility of the ab-initio parametrization of C6 coefficients through the Tkatchenko-Scheffler method. I tried, as a preliminary test, to obtain the coefficients for benzene. My input file for ground state is:

Everything runs fine and I obtain a value for the coefficent quite similar to Amber GAFF (using Hirshfeld-I partitioning and atmrad folder) using the .fchk file for the molecule and the .wfn files for carbon and hydrogen. Then, I wanted to check if excited states could also be dealt with. My input file for the excited state is:

Following the exact same procedure (substituting the .fchk file with the excited state one and keeping the same .wfn files for the isolated atoms as in the ground state), I obtain identical parameters for the C6 coefficients as if the program was reading the ground state density from the .fchk instead of the excited state density.

Could you please give me some insights abouth this?
Thank you very much for your help,
Lorenzo