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

Compare vibrational frequencies in CCCBDB for CBr2F2 (Methane, dibromodifluoro-)

LSDA/6-31G(2df,p)

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3598 2508 A1 1090  
2 A1 623 0 A1 623  
3 A' 2791 2651 A1 140  
4 A1 163 -5 A1 168  
5 A' 1511 1230 A2 281  
6 B1 1192 39 B1 1153  
7 A' 1244 875 B1 369  
8 B2 798 -33 B2 831  
9 A' 531 296 B2 235  
10 A" 992        
11 A" 644        
12 A" 269        
The calculated vibrational frequencies were scaled by 0.984

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.