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

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

HF/6-31G**

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3602 2512 A1 1090  
2 A 3470 2847 A1 623  
3 A 2870 2730 A1 140  
4 A 1803 1635 A1 168  
5 A 1600 1319 A2 281  
6 A 1405 252 B1 1153  
7 A 1239 870 B1 369  
8 A 1067 236 B2 831  
9 A 1043 808 B2 235  
10 A 605        
11 A 557        
12 A 178        
The calculated vibrational frequencies were scaled by 0.9026

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.