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

Compare vibrational frequencies in CCCBDB for CH3SOCH3 (Dimethyl sulfoxide)

mPW1PW91/3-21G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3078 68 A' 3010  
2 A' 3073 63 A' 3010  
3 A' 2961 28 A' 2933  
4 A' 1467 48 A' 1419  
5 A' 1444 39 A' 1405  
6 A' 1318 14 A' 1304  
7 A' 993 -109 A' 1102  
8 A' 967 -49 A' 1016  
9 A' 842 -164 A' 1006  
10 A' 551 -121 A' 672  
11 A' 292 -90 A' 382  
12 A' 246 -62 A' 308  
13 A' 169      
14 A" 3076 66 A" 3010  
15 A" 3071 61 A" 3010  
16 A" 2960 27 A" 2933  
17 A" 1450 -5 A" 1455  
18 A" 1429 -11 A" 1440  
19 A" 1292 -27 A" 1319  
20 A" 907 -46 A" 953  
21 A" 878 -55 A" 933  
22 A" 574 -121 A" 695  
23 A" 224 -109 A" 333  
24 A" 120      
The calculated vibrational frequencies were scaled by 0.9546

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.