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Compare vibrational frequencies in CCCBDB for HSiCl (Chlorosilylene)

PM3

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' 1929 1879 -73 -90 A' 2002 1969 fund
2 A' 740 720 -70 -86 A' 810 807 eq
3 A' 406 396 -119 -127 A' 525 523  
The calculated vibrational frequencies were scaled by 0.974

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.