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

Compare vibrational frequencies in CCCBDB for ONONO (Nitrosyl nitrite)

CCD/6-311G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 1786 46 A1 1740  
2 A1 1045 71 A1 974  
3 A1 463 68 A1 395  
4 A1 270        
5 A2 217 7 A2 210  
6 B1 138 -2 B1 140  
7 B2 1735 37 B2 1697  
8 B2 755 51 B2 705  
9 B2 578 198 B2 380  
The calculated vibrational frequencies were scaled by 0.9551

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.