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

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

CID/6-311G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3594 2504 A1 1090  
2 A 3471 2848 A1 623  
3 A 2865 2725 A1 140  
4 A 1787 1619 A1 168  
5 A 1609 1328 A2 281  
6 A 1384 231 B1 1153  
7 A 1237 868 B1 369  
8 A 1046 215 B2 831  
9 A 1019 784 B2 235  
10 A 603        
11 A 550        
12 A 256        
The calculated vibrational frequencies were scaled by 0.9291

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.