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

Compare vibrational frequencies in CCCBDB for CHONH2 (formamide)

HF/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3600 36 A' 3564  
2 A' 3471 32 A' 3439  
3 A' 2947 93 A' 2854  
4 A' 1705 -49 A' 1754  
5 A' 1642 65 A' 1577  
6 A' 1402 11 A' 1390  
7 A' 1264 6 A' 1258  
8 A' 1065 20 A' 1046  
9 A' 559 -22 A' 581  
10 A" 1066 45 A" 1021  
11 A" 666 64 A" 603  
12 A" 523 234 A" 289  
The calculated vibrational frequencies were scaled by 0.9029

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.