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

B3LYP/6-31G(2df,p)

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3120 30 A' 3090  
2 A 3038 23 A' 3015  
3 A 3030 15 A' 3015  
4 A 3022 7 A' 3015  
5 A 3017 2 A' 3015  
6 A 2996 56 A' 2940  
7 A 2910 -9 A' 2919  
8 A 1666 5 A' 1661  
9 A 1618 8 A' 1610  
10 A 1438 5 A' 1433  
11 A 1405 -17 A' 1422  
12 A 1361 -24 A' 1385  
13 A 1292 -24 A' 1316  
14 A 1276 -23 A' 1299  
15 A 1251 -29 A' 1280  
16 A 1167 1 A' 1166  
17 A 1061 24 A' 1037  
18 A 956 -29 A' 985  
19 A 875 13 A' 862  
20 A 467 -16 A' 483  
21 A 434 16 A' 418  
22 A 188 -24 A' 212  
23 A 2952 -19 A" 2971  
24 A 1426 -27 A" 1453  
25 A 1027 10 A" 1017  
26 A 1021 19 A" 1002  
27 A 962 50 A" 912  
28 A 895 -4 A" 899  
29 A 824 4 A" 820  
30 A 631 16 A" 615  
31 A 253        
32 A 208        
33 A 135 6 A" 129 reassigned from nu32
The calculated vibrational frequencies were scaled by 0.965

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.