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

Compare vibrational frequencies in CCCBDB for CHClCHCl (Ethene, 1,2-dichloro-, (Z)-)

B3PW91/STO-3G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3085 8 A1 3077  
2 A1 1590 3 A1 1587  
3 A1 1102 -77 A1 1179  
4 A1 684 -27 A1 711  
5 A1 137 -36 A1 173  
6 A2 836 -40 A2 876  
7 A2 361 -45 A2 406  
8 B1 651 -46 B1 697  
9 B2 3061 -11 B2 3072  
10 B2 1229 -74 B2 1303  
11 B2 818 -39 B2 857  
12 B2 512 -59 B2 571  
The calculated vibrational frequencies were scaled by 0.885

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.