Hi, Does anyone know wether scaling factors for B-Half-and-Half-LYP/6-31G** computed vibrational frequencies exist, and if so, where can I find them? Thanks Steven -------------------------------------------------------------------------- Steven Creve steven.creve - at - chem.kuleuven.ac.be Labo Quantumchemie Celestijnenlaan 200F 3001-HEVERLEE tel: (32) (16) 32 73 93 BELGIUM fax: (32) (16) 32 79 92