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

Compare vibrational frequencies in CCCBDB for N2O3 (Dinitrogen trioxide)

HF/cc-pVDZ

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 1920 88 A' 1832  
2 A' 1798 146 A' 1652  
3 A' 1464 159 A' 1305  
4 A' 846 73 A' 773  
5 A' 787 160 A' 627  
6 A' 385 144 A' 241  
7 A' 330 125 A' 205  
8 A" 619 205 A" 414  
9 A" 123 60 A" 63  
The calculated vibrational frequencies were scaled by 0.908

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.