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Compare vibrational frequencies in CCCBDB for HClO4 (perchloric acid)

G3

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' 3972 3972   415 A'   3557  
2 A' 1454 1454   147 A'   1307  
3 A' 1310 1310   130 A'   1180  
4 A' 1100 1100   62 A'   1038  
5 A' 879 879   168 A'   711  
6 A' 628 628   59 A'   569  
7 A' 612 612   64 A'   548  
8 A' 444 444   39 A'   405  
9 A" 1310 1310   68 A"   1242  
10 A" 632 632   56 A"   576  
11 A" 464 464   56 A"   408  
12 A" 197 197   6 A"   191  
The calculated vibrational frequencies were scaled by 1

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.