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Compare vibrational frequencies in CCCBDB for CH2Cl (chloromethyl radical)

HSEh1PBE/3-21G

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' 3218 3100           
2 A' 1407 1356           
3 A' 733 706           
4 A' 215 207           
5 A" 3396 3272           
6 A" 974 938           
The calculated vibrational frequencies were scaled by 0.9633

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.