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

Compare vibrational frequencies in CCCBDB for H2POH (Phosphinous acid)

mPW1PW91/STO-3G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3335 -309 A' 3644  
2 A' 2413 108 A' 2305  
3 A' 1243 119 A' 1124  
4 A' 1225 150 A' 1075  
5 A' 908 -7 A' 915  
6 A' 748 -49 A' 797  
7 A" 2444 166 A" 2278  
8 A" 918 70 A" 848  
9 A" 148 -227 A" 375  
The calculated vibrational frequencies were scaled by 0.8789

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.