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

Compare vibrational frequencies in CCCBDB for CH2Br2 (dibromomethane)

BLYP/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3079 70 A1 3009  
2 A1 1411 29 A1 1382  
3 A1 508 -80 A1 588  
4 A1 151 -18 A1 169  
5 A2 1063 -32 A2 1095  
6 B1 3184 111 B1 3073  
7 B1 781 -31 B1 812  
8 B2 1179 -16 B2 1195  
9 B2 531 -122 B2 653  
The calculated vibrational frequencies were scaled by 0.9924

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.