National Institute of Standards and Technology
Computational Chemistry Comparison and Benchmark DataBase
Release 18October 2016
NIST Standard Reference Database 101
IIntroduction
IIExperimental data
IIICalculated data
IVData comparisons
VCost comparisons
VIInput and output files
VIITutorials and Units
VIIILinks to other sites
IXFeedback
XOlder CCCBDB versions
XIIGeometries
XIII Vibrations
XIVReaction data
XVEntropy data
XVIBibliographic data
XVIIIon data
XVIIIBad calculations
XIXIndex of properties
XXH-bond dimers
XXIOddities

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

Compare vibrational frequencies in CCCBDB for CH3SSCH3 (Disulfide, dimethyl)

CCD/6-31G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3028 38 A 2990  
2 A 3014 31 A 2983  
3 A 2929 16 A 2913  
4 A 1448 22 A 1426  
5 A 1436 17 A 1419  
6 A 1356 45 A 1311  
7 A 974 19 A 955  
8 A 968 19 A 949  
9 A 707 13 A 694  
10 A 495 -14 A 509  
11 A 228 -12 A 240  
12 A 149 15 A 134  
13 A 92 -25 A 117  
14 B 3028 38 B 2990  
15 B 3014 31 B 2983  
16 B 2928 13 B 2915  
17 B 1452 22 B 1430  
18 B 1429 14 B 1415  
19 B 1349 46 B 1303  
20 B 974 19 B 955  
21 B 966 17 B 949  
22 B 703 12 B 691  
23 B 257 -17 B 274  
24 B 160 26 B 134  
The calculated vibrational frequencies were scaled by 0.9465

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.