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IV.C.1. (XIII.D.1.)

Compare vibrational frequencies in CCCBDB for FO2 (Dioxygen monofluoride)

MP2/cc-pVTZ

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 2676 1189 A' 1487  
2 A' 1243 664 A' 579  
3 A' 650 274 A' 376  
The calculated vibrational frequencies were scaled by 0.9495

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.