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

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

HF/6-311G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3607 2517 A1 1090  
2 A 3482 2859 A1 623  
3 A 2875 2735 A1 140  
4 A 1795 1627 A1 168  
5 A 1630 1349 A2 281  
6 A 1409 256 B1 1153  
7 A 1238 869 B1 369  
8 A 1064 233 B2 831  
9 A 1047 812 B2 235  
10 A 610        
11 A 560        
12 A 96        
The calculated vibrational frequencies were scaled by 0.9044

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.