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Compare vibrational frequencies in CCCBDB for ClONO2 (Chlorine nitrate)

BLYP/6-31G*

18 11 26 13 55
Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency Scaled
Frequency
Harm.
diff
Fund.
diff
Symmetry Harmonic
Frequency
Fundamental
Frequency
Comment
1 A' 1743 1729   -8 A'   1737  
2 A' 1284 1274   -19 A'   1293  
3 A' 769 763   -46 A'   809  
4 A' 711 705   -75 A'   780  
5 A' 493 489   -74 A'   563  
6 A' 373 370   -64 A'   434  
7 A' 213 211   -62 A'   273  
8 A" 642 637   -75 A"   711  
9 A" 130 129   6 A"   124  
The calculated vibrational frequencies were scaled by 0.9919

See section Calculated; Vibrations; Scale Factors; Set scaling factors to change the scale factors used here.
See section Calculated; Vibrations; Scale Factors; Calculate a scale factor to determine the least squares best scaling factor.
See section Calculated; Vibrations; Scale Factors; Scale factor uncertainty for information on where the above scaling factor is from.