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

Compare vibrational frequencies in CCCBDB for SF6 (Sulfur Hexafluoride)

PM3

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1   -774 A1g 774  
2   -642 Eg 642  
3   -948 T1u 948  
4   -616 T1u 616  
5   -525 T2g 525  
6   -347 T2u 347  
The calculated vibrational frequencies were scaled by 0.974

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.