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

Compare vibrational frequencies in CCCBDB for C5H8 (1,3-Pentadiene, (Z)-)

LSDA/3-21G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3125 65 A' 3060  
2 A' 3049 -11 A' 3060  
3 A' 3035 20 A' 3015  
4 A' 3030 32 A' 2998  
5 A' 3025 27 A' 2998  
6 A' 3014 76 A' 2938  
7 A' 2922 3 A' 2919  
8 A' 1664 8 A' 1656  
9 A' 1621 19 A' 1602  
10 A' 1462 17 A' 1445  
11 A' 1434 -1 A' 1435  
12 A' 1378 -13 A' 1391  
13 A' 1368 11 A' 1357  
14 A' 1294 -6 A' 1300  
15 A' 1262 8 A' 1254  
16 A' 1171 2 A' 1169  
17 A' 1046 21 A' 1025  
18 A' 957 -7 A' 964  
19 A' 889 49 A' 840  
20 A' 617 -10 A' 627  
21 A' 392 -10 A' 402  
22 A' 231 87 A' 144  
23 A" 2974 -1 A" 2975  
24 A" 1456 -15 A" 1471  
25 A" 1033 24 A" 1009  
26 A" 997 0 A" 997  
27 A" 953 32 A" 921  
28 A" 894 -12 A" 906  
29 A" 776 3 A" 773  
30 A" 624 -3 A" 627  
31 A" 342 -114 A" 456  
32 A" 166 -5 A" 171  
33 A" 126        
The calculated vibrational frequencies were scaled by 0.9836

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.