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Compare vibrational frequencies in CCCBDB for O3 (Ozone)

MP4/3-21G

18 11 26 13 55
Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency Scaled
Frequency
Harm.
diff
Fund.
diff
Symmetry Harmonic
Frequency
Fundamental
Frequency
Comment
1 A1 1096 1063 -39 -47 A1 1135 1110  
2 A1 572 554 -144 -151 A1 716 705  
3 B2 2308 2238 1218 1196 B2 1089 1042  
The calculated vibrational frequencies were scaled by 0.9698

See section Calculated; Vibrations; Scale Factors; Set scaling factors to change the scale factors used here.
See section Calculated; Vibrations; Scale Factors; Calculate a scale factor to determine the least squares best scaling factor.
See section Calculated; Vibrations; Scale Factors; Scale factor uncertainty for information on where the above scaling factor is from.