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

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

MP2/aug-cc-pVDZ

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3609 2519 A1 1090  
2 A 3457 2834 A1 623  
3 A 2909 2769 A1 140  
4 A 1691 1523 A1 168  
5 A 1551 1270 A2 281  
6 A 1348 195 B1 1153  
7 A 1222 853 B1 369  
8 A 1005 174 B2 831  
9 A 989 754 B2 235  
10 A 609        
11 A 534        
12 A 165        
The calculated vibrational frequencies were scaled by 0.959

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.