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

Compare vibrational frequencies in CCCBDB for ONONO (Nitrosyl nitrite)

CISD/6-311G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 1833 93 A1 1740  
2 A1 1080 107 A1 974  
3 A1 490 95 A1 395  
4 A1 279        
5 A2 223 13 A2 210  
6 B1 143 3 B1 140  
7 B2 1774 77 B2 1697  
8 B2 787 83 B2 705  
9 B2 637 257 B2 380  
The calculated vibrational frequencies were scaled by 0.9253

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.