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 C5H8 (1,3-Pentadiene, (E)-)

MP2/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3119 29 A' 3090  
2 A 3030 15 A' 3015  
3 A 3014 -1 A' 3015  
4 A 3010 -5 A' 3015  
5 A 2997 -18 A' 3015  
6 A 2993 53 A' 2940  
7 A 2913 -6 A' 2919  
8 A 1646 -15 A' 1661  
9 A 1588 -22 A' 1610  
10 A 1503 70 A' 1433  
11 A 1443 21 A' 1422  
12 A 1425 40 A' 1385  
13 A 1320 4 A' 1316  
14 A 1300 1 A' 1299  
15 A 1293 13 A' 1280  
16 A 1187 21 A' 1166  
17 A 1075 38 A' 1037  
18 A 978 -7 A' 985  
19 A 895 33 A' 862  
20 A 467 -16 A' 483  
21 A 441 23 A' 418  
22 A 191 -21 A' 212  
23 A 2980 9 A" 2971  
24 A 1484 31 A" 1453  
25 A 1068 51 A" 1017  
26 A 982 -20 A" 1002  
27 A 932 20 A" 912  
28 A 875 -24 A" 899  
29 A 775 -45 A" 820  
30 A 603 -12 A" 615  
31 A 233        
32 A 182        
33 A 115 -14 A" 129 reassigned from nu32
The calculated vibrational frequencies were scaled by 0.9568

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.