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

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

MP2/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3599 2509 A1 1090  
2 A 3457 2834 A1 623  
3 A 2927 2787 A1 140  
4 A 1656 1488 A1 168  
5 A 1608 1327 A2 281  
6 A 1383 230 B1 1153  
7 A 1240 871 B1 369  
8 A 1028 197 B2 831  
9 A 989 754 B2 235  
10 A 613        
11 A 540        
12 A 439        
The calculated vibrational frequencies were scaled by 0.9568

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.