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

Compare vibrational frequencies in CCCBDB for N2H4 (Hydrazine)

LSDA/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3533 135 A 3398  
2 A 3408 79 A 3329  
3 A 1634 -8 A 1642  
4 A 1272 -3 A 1275  
5 A 1206 130 A 1076  
6 A 802 22 A 780  
7 A 184 -193 A 377  
8 B 3533 183 B 3350  
9 B 3447 133 B 3314  
10 B 1641 13 B 1628  
11 B 1206 -69 B 1275  
12 B 184 -782 B 966  
The calculated vibrational frequencies were scaled by 0.9797

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.