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

Compare vibrational frequencies in CCCBDB for C2H6O2S (Dimethyl sulfone)

CISD/6-31G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3055 37 A1 3018 B1 & B2 reversed
2 A1 2959 23 A1 2936  
3 A1 1438 -13 A1 1451  
4 A1 1368 31 A1 1337  
5 A1 1130 9 A1 1121  
6 A1 1010 -3 A1 1013  
7 A1 695 -8 A1 703  
8 A1 477 -19 A1 496  
9 A1 265 -29 A1 294  
10 A2 3057 33 A2 3024  
11 A2 1428 23 A2 1405  
12 A2 946 9 A2 937  
13 A2 285 -41 A2 326  
14 A2 189   A2   CH3 torsion
15 B1 3061 36 B1 3025 B1 & B2 reversed
16 B1 1443 15 B1 1428 B1 & B2 reversed
17 B1 1310 41 B1 1269 B1 & B2 reversed
18 B1 1002 16 B1 986 B1 & B2 reversed
19 B1 354 -42 B1 396 B1 & B2 reversed
20 B1 217 -45 B1 262 B1 & B2 reversed
21 B2 3054 37 B2 3017 B1 & B2 reversed
22 B2 2955 19 B2 2936 B1 & B2 reversed
23 B2 1430 -8 B2 1438 B1 & B2 reversed
24 B2 1352 30 B2 1322 B1 & B2 reversed
25 B2 958 -0 B2 958 B1 & B2 reversed
26 B2 765 -6 B2 771 B1 & B2 reversed
27 B2 445 -20 B2 465 B1 & B2 reversed
The calculated vibrational frequencies were scaled by 0.9258

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.