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

Compare vibrational frequencies in CCCBDB for SO2Cl2 (Sulfuryl chloride)

mPW1PW91/STO-3G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 845 -360 A1 1205  
2 A1 397 -180 A1 577  
3 A1 241 -167 A1 408  
4 A1 111 -107 A1 218  
5 A2 156 -126 A2 282  
6 B1 407 -179 B1 586  
7 B1 213 -175 B1 388  
8 B2 948 -486 B2 1434  
9 B2 212 -150 B2 362  
The calculated vibrational frequencies were scaled by 0.8789

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.