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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 3555 2465 A1 1090  
2 A 3433 2810 A1 623  
3 A 2877 2737 A1 140  
4 A 1778 1610 A1 168  
5 A 1572 1291 A2 281  
6 A 1384 231 B1 1153  
7 A 1237 868 B1 369  
8 A 1033 202 B2 831  
9 A 1017 782 B2 235  
10 A 602        
11 A 543        
12 A 144        
The calculated vibrational frequencies were scaled by 0.9237

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.