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

Compare vibrational frequencies in CCCBDB for H2OH2O (water dimer)

MP2/STO-3G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3530 -205 A' 3735  
2 A' 3336 -324 A' 3660  
3 A' 3305 -296 A' 3601  
4 A' 1847 231 A' 1616  
5 A' 1792 193 A' 1599  
6 A' 464 153 A' 311  
7 A' 277 134 A' 143  
8 A' 236 133 A' 103  
9 A" 3557 -188 A" 3745  
10 A" 685 162 A" 523  
11 A" 289 181 A" 108  
12 A" 92 4 A" 88  
The calculated vibrational frequencies were scaled by 0.8719

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.