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

Compare vibrational frequencies in CCCBDB for CBr2F2 (Methane, dibromodifluoro-)

HF/CEP-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3615 2525 A1 1090  
2 A1 552 -71 A1 623  
3 A' 2969 2829 A1 140  
4 A1 156 -12 A1 168  
5 A' 1610 1329 A2 281  
6 B1 1072 -81 B1 1153  
7 A' 1233 864 B1 369  
8 B2 811 -20 B2 831  
9 A' 538 303 B2 235  
10 A" 1031        
11 A" 628        
12 A" 497        
The calculated vibrational frequencies were scaled by 0.9014

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.