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Compare vibrational frequencies in CCCBDB for SiF2+ (Silicon difluoride cation)

B3LYP/cc-pVDZ

17 05 22 16 49
Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 837        
2 A1 254 -96 A1 350  
3 B2 1010        
The calculated vibrational frequencies were scaled by 0.97

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.