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

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

MP2=FULL/6-31G(2df,p)

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3605 2515 A1 1090  
2 A 3462 2839 A1 623  
3 A 2854 2714 A1 140  
4 A 1739 1571 A1 168  
5 A 1533 1252 A2 281  
6 A 1367 214 B1 1153  
7 A 1221 852 B1 369  
8 A 1016 185 B2 831  
9 A 1001 766 B2 235  
10 A 621        
11 A 531        
12 A 98        
The calculated vibrational frequencies were scaled by 0.9423

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.