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

Compare vibrational frequencies in CCCBDB for N2O3 (Dinitrogen trioxide)

LSDA/cc-pV(T+d)Z

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 1897 65 A' 1832  
2 A' 1758 106 A' 1652  
3 A' 1375 70 A' 1305  
4 A' 806 33 A' 773  
5 A' 663 36 A' 627  
6 A' 305 64 A' 241  
7 A' 214 9 A' 205  
8 A" 449 35 A" 414  
9 A" 147 84 A" 63  
The calculated vibrational frequencies were scaled by 0.9899

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.