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

Compare vibrational frequencies in CCCBDB for C2H6O2S (Dimethyl sulfone)

LSDA/6-31G(2df,p)

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3066 48 A1 3018 B1 & B2 reversed
2 A1 2952 16 A1 2936  
3 A1 1355 -96 A1 1451  
4 A1 1243 -94 A1 1337  
5 A1 1153 32 A1 1121  
6 A1 940 -73 A1 1013  
7 A1 675 -28 A1 703  
8 A1 466 -30 A1 496  
9 A1 257 -37 A1 294  
10 A2 3069 45 A2 3024  
11 A2 1338 -67 A2 1405  
12 A2 850 -87 A2 937  
13 A2 271 -55 A2 326  
14 A2 166   A2   CH3 torsion
15 B1 3072 47 B1 3025 B1 & B2 reversed
16 B1 1377 -51 B1 1428 B1 & B2 reversed
17 B1 1346 77 B1 1269 B1 & B2 reversed
18 B1 914 -72 B1 986 B1 & B2 reversed
19 B1 332 -64 B1 396 B1 & B2 reversed
20 B1 202 -60 B1 262 B1 & B2 reversed
21 B2 3065 48 B2 3017 B1 & B2 reversed
22 B2 2950 14 B2 2936 B1 & B2 reversed
23 B2 1342 -96 B2 1438 B1 & B2 reversed
24 B2 1223 -99 B2 1322 B1 & B2 reversed
25 B2 879 -79 B2 958 B1 & B2 reversed
26 B2 716 -55 B2 771 B1 & B2 reversed
27 B2 430 -35 B2 465 B1 & B2 reversed
The calculated vibrational frequencies were scaled by 0.984

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.