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

Compare vibrational frequencies in CCCBDB for CH3PH2 (Methyl phosphine)

PM3

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1   -3000 A' 3000  
2   -2938 A' 2938  
3   -2297 A' 2297  
4   -1450 A' 1450  
5   -1238 A' 1238  
6   -1086 A' 1086  
7   -977 A' 977  
8   -740 A' 740  
9   -677 A' 677  
10   -2992 A" 2992  
11   -2312 A" 2312  
12   -1450 A" 1450  
13   -1017 A" 1017  
         
15   -207 A" 207  
The calculated vibrational frequencies were scaled by 0.974

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.