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

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

CID/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3578 2488 A1 1090  
2 A 3449 2826 A1 623  
3 A 2902 2762 A1 140  
4 A 1675 1507 A1 168  
5 A 1624 1343 A2 281  
6 A 1381 228 B1 1153  
7 A 1245 876 B1 369  
8 A 1043 212 B2 831  
9 A 1002 767 B2 235  
10 A 611        
11 A 545        
12 A 459        
The calculated vibrational frequencies were scaled by 0.9352

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.