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

Compare vibrational frequencies in CCCBDB for CH3SOCH3 (Dimethyl sulfoxide)

PBEPBE/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3112 102 A' 3010  
2 A' 3101 91 A' 3010  
3 A' 2974 41 A' 2933  
4 A' 1449 30 A' 1419  
5 A' 1429 24 A' 1405  
6 A' 1297 -7 A' 1304  
7 A' 981 -121 A' 1102  
8 A' 955 -61 A' 1016  
9 A' 811 -195 A' 1006  
10 A' 534 -138 A' 672  
11 A' 289 -93 A' 382  
12 A' 232 -76 A' 308  
13 A' 171      
14 A" 3111 101 A" 3010  
15 A" 3099 89 A" 3010  
16 A" 2974 41 A" 2933  
17 A" 1434 -21 A" 1455  
18 A" 1415 -25 A" 1440  
19 A" 1273 -46 A" 1319  
20 A" 902 -51 A" 953  
21 A" 873 -60 A" 933  
22 A" 556 -139 A" 695  
23 A" 220 -113 A" 333  
24 A" 127      
The calculated vibrational frequencies were scaled by 0.9862

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.