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IV.C.1. (XIII.D.1.)

Compare vibrational frequencies in CCCBDB for ClFO3 (Perchloryl fluoride)

B3LYP/CEP-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 614 -447 A1 1061  
2 A1 480 -235 A1 715  
3 A1 254 -295 A1 549  
4 E 687 -628 E 1315  
5 E 270 -319 E 589  
6 E 185 -220 E 405  
The calculated vibrational frequencies were scaled by 0.9684

See section XIII.C.3 List or set vibrational scaling factors to change the scale factors used here.
See section III.B.3.c Calculate a vibrational scaling factor for a set of molecules to determine the least squares best scaling factor.
See section III.B.3.b List of vibrational scaling factors and their uncertainties for information on where the above scaling factor is from.