return to home page

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

Compare vibrational frequencies in CCCBDB for C2H6O2S (Dimethyl sulfone)

LSDA/aug-cc-pVDZ

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3087 69 A1 3018 B1 & B2 reversed
2 A1 2962 26 A1 2936  
3 A1 1330 -121 A1 1451  
4 A1 1214 -123 A1 1337  
5 A1 1071 -50 A1 1121  
6 A1 931 -82 A1 1013  
7 A1 650 -53 A1 703  
8 A1 426 -70 A1 496  
9 A1 246 -48 A1 294  
10 A2 3088 64 A2 3024  
11 A2 1317 -88 A2 1405  
12 A2 843 -94 A2 937  
13 A2 261 -65 A2 326  
14 A2 147   A2   CH3 torsion
15 B1 3091 66 B1 3025 B1 & B2 reversed
16 B1 1338 -90 B1 1428 B1 & B2 reversed
17 B1 1242 -27 B1 1269 B1 & B2 reversed
18 B1 898 -88 B1 986 B1 & B2 reversed
19 B1 313 -83 B1 396 B1 & B2 reversed
20 B1 185 -77 B1 262 B1 & B2 reversed
21 B2 3086 69 B2 3017 B1 & B2 reversed
22 B2 2960 24 B2 2936 B1 & B2 reversed
23 B2 1316 -122 B2 1438 B1 & B2 reversed
24 B2 1196 -126 B2 1322 B1 & B2 reversed
25 B2 869 -89 B2 958 B1 & B2 reversed
26 B2 699 -72 B2 771 B1 & B2 reversed
27 B2 407 -58 B2 465 B1 & B2 reversed
The calculated vibrational frequencies were scaled by 0.9887

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.