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

Compare vibrational frequencies in CCCBDB for CH3CH2NH2 (Ethylamine)

PBEPBE/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3393 48 A' 3345  
2 A' 3009 24 A' 2985  
3 A' 2937 97 A' 2840  
4 A' 2924 64 A' 2860  
5 A' 1643 21 A' 1622  
6 A' 1480 -7 A' 1487  
7 A' 1462 -3 A' 1465  
8 A' 1382 4 A' 1378  
9 A' 1348 -49 A' 1397  
10 A' 1122 106 A' 1016  
11 A' 1035 -51 A' 1086  
12 A' 868 -24 A' 892  
13 A' 603 -170 A' 773  
14 A' 384 -19 A' 403  
15 A" 3510 98 A" 3412  
16 A" 3017 93 A" 2924  
17 A" 2977 71 A" 2906  
18 A" 1474 19 A" 1455  
19 A" 1342 104 A" 1238  
20 A" 1236 -57 A" 1293  
21 A" 976 -141 A" 1117  
22 A" 762 -54 A" 816  
23 A" 280 21 A" 259  
24 A" 250 32 A" 218  
The calculated vibrational frequencies were scaled by 0.9862

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.