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

Compare vibrational frequencies in CCCBDB for CH3SCH3 (Dimethyl sulfide)

B3LYP/3-21G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3067 69 A1 2998  
2 A1 2969 39 A1 2930  
3 A1 1493 49 A1 1444  
4 A1 1354 23 A1 1331  
5 A1 1030 57 A1 973  
6 A1 600 -95 A1 695  
7 A1 230 -52 A1 282  
8 A2 3059 107 A2 2952  
9 A2 1479 59 A2 1420  
10 A2 931 12 A2 919  
11 A2 163        
12 B1 3055 85 B1 2970  
13 B1 1488 49 B1 1439  
14 B1 962 -11 B1 973  
15 B1 158 -24 B1 182  
16 B2 3068 70 B2 2998  
17 B2 2972 42 B2 2930  
18 B2 1485 41 B2 1444  
19 B2 1329 14 B2 1315  
20 B2 910 7 B2 903  
21 B2 642 -101 B2 743  
The calculated vibrational frequencies were scaled by 0.9649

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.