Hi all, I would like to know the present recommend scaling factor for calculated IR frequencies with the B3LYP functional and the 6-311G* basis set. I'm aware of the value from Scott and Radom of 0.9614 for the B3LYP functional with the 6-31G(d) basis set. The reference therefore is J. Phys. Chem., Vol. 100, No. 41, 1996, p. 16505. Thank you in advance Jan