National Institute of Standards and Technology
Computational Chemistry Comparison and Benchmark DataBase
Release 17bSeptember 2015
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 CH3COCH3 (Acetone)

CID/6-31G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3029 10 A1 3019  
2 A1 2919 -18 A1 2937  
3 A1 1785 54 A1 1731  
4 A1 1443 8 A1 1435  
5 A1 1371 7 A1 1364  
6 A1 1059 -7 A1 1066  
7 A1 773 -4 A1 777  
8 A1 362 -23 A1 385  
9 A2 2976 13 A2 2963  
10 A2 1437 11 A2 1426  
11 A2 873 -4 A2 877  
12 A2 48 -29 A2 77  
13 B1 2982 10 B1 2972  
14 B1 1456 2 B1 1454  
15 B1 1100 9 B1 1091  
16 B1 471 -13 B1 484  
17 B1 129 4 B1 125  
18 B2 3028 9 B2 3019  
19 B2 2913 -24 B2 2937  
20 B2 1437 27 B2 1410  
21 B2 1380 16 B2 1364  
22 B2 1219 3 B2 1216  
23 B2 882 -9 B2 891  
24 B2 515 -15 B2 530  
The calculated vibrational frequencies were scaled by 0.9237

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.