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

Compare vibrational frequencies in CCCBDB for NF3 (Nitrogen trifluoride)

HF/STO-3G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 1076 44 A1 1032  
2 A1 532 -115 A1 647  
3 E 1181 274 E 907  
4 E 411 -81 E 492  
The calculated vibrational frequencies were scaled by 0.8165

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.