Compare vibrational frequencies in CCCBDB for C2H4 (Ethylene)
MP2/CEP-121GFrequency in cm-1
|5||B1u||3007||18||B1u||2989||sym was B3U|
|6||B1u||1462||18||B1u||1444||sym was B3U|
|10||B3g||3107||21||B3g||3086||sym was B1G|
|11||B3g||1215||-2||B3g||1217||sym was B1G|
|12||B3u||930||-20||B3u||949||sym was B1U|
See section XIII.C.3 List or set vibrational scaling factors to change the scale factors used here.
See section III.B.3.c Calculate a vibrational scaling factor for a set of molecules to determine the least squares best scaling factor.
See section III.B.3.b List of vibrational scaling factors and their uncertainties for information on where the above scaling factor is from.