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

Compare vibrational frequencies in CCCBDB for CH3CH2NH2 (Ethylamine)

HF/CEP-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3421 76 A' 3345  
2 A' 2949 -36 A' 2985  
3 A' 2919 79 A' 2840  
4 A' 2876 16 A' 2860  
5 A' 1646 24 A' 1622  
6 A' 1479 -8 A' 1487  
7 A' 1466 1 A' 1465  
8 A' 1398 20 A' 1378  
9 A' 1358 -39 A' 1397  
10 A' 1111 95 A' 1016  
11 A' 1042 -44 A' 1086  
12 A' 861 -31 A' 892  
13 A' 572 -201 A' 773  
14 A' 378 -25 A' 403  
15 A" 3539 127 A" 3412  
16 A" 2970 46 A" 2924  
17 A" 2938 32 A" 2906  
18 A" 1465 10 A" 1455  
19 A" 1331 93 A" 1238  
20 A" 1231 -62 A" 1293  
21 A" 953 -164 A" 1117  
22 A" 753 -63 A" 816  
23 A" 242 -17 A" 259  
24 A" 196 -22 A" 218  
The calculated vibrational frequencies were scaled by 0.9014

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.