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

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

PBEPBE/6-31G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3136 46 A' 3090  
2 A 3052 37 A' 3015  
3 A 3036 21 A' 3015  
4 A 3031 16 A' 3015  
5 A 3024 9 A' 3015  
6 A 3013 73 A' 2940  
7 A 2919 0 A' 2919  
8 A 1661 0 A' 1661  
9 A 1616 6 A' 1610  
10 A 1450 17 A' 1433  
11 A 1406 -16 A' 1422  
12 A 1367 -18 A' 1385  
13 A 1288 -28 A' 1316  
14 A 1273 -26 A' 1299  
15 A 1248 -32 A' 1280  
16 A 1178 12 A' 1166  
17 A 1076 39 A' 1037  
18 A 957 -28 A' 985  
19 A 880 18 A' 862  
20 A 466 -17 A' 483  
21 A 433 15 A' 418  
22 A 187 -25 A' 212  
23 A 2968 -3 A" 2971  
24 A 1436 -17 A" 1453  
25 A 1016 -1 A" 1017  
26 A 1004 2 A" 1002  
27 A 935 23 A" 912  
28 A 857 -42 A" 899  
29 A 802 -18 A" 820  
30 A 619 4 A" 615  
31 A 253        
32 A 206        
33 A 135 6 A" 129 reassigned from nu32
The calculated vibrational frequencies were scaled by 0.9857

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.