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

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

MP2=FULL/3-21G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3089 29 A' 3060  
2 A' 3026 -34 A' 3060  
3 A' 3015 -0 A' 3015  
4 A' 3004 6 A' 2998  
5 A' 3000 2 A' 2998  
6 A' 2980 42 A' 2938  
7 A' 2918 -1 A' 2919  
8 A' 1609 -47 A' 1656  
9 A' 1565 -37 A' 1602  
10 A' 1509 64 A' 1445  
11 A' 1453 18 A' 1435  
12 A' 1416 25 A' 1391  
13 A' 1384 27 A' 1357  
14 A' 1311 11 A' 1300  
15 A' 1274 20 A' 1254  
16 A' 1153 -16 A' 1169  
17 A' 1052 27 A' 1025  
18 A' 922 -42 A' 964  
19 A' 836 -4 A' 840  
20 A' 601 -26 A' 627  
21 A' 383 -19 A' 402  
22 A' 221 77 A' 144  
23 A" 2968 -7 A" 2975  
24 A" 1506 35 A" 1471  
25 A" 1067 58 A" 1009  
26 A" 981 -16 A" 997  
27 A" 940 19 A" 921  
28 A" 893 -13 A" 906  
29 A" 761 -12 A" 773  
30 A" 603 -24 A" 627  
31 A" 333 -123 A" 456  
32 A" 110 -61 A" 171  
33 A" 92        
The calculated vibrational frequencies were scaled by 0.948

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.