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Compare vibrational frequencies in CCCBDB for N2H4 (Hydrazine)

B3LYP/CEP-121G

18 11 26 13 55
Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency Scaled
Frequency
Harm.
diff
Fund.
diff
Symmetry Harmonic
Frequency
Fundamental
Frequency
Comment
1 A 3604 3512   114 A   3398  
2 A 3448 3360   31 A   3329  
3 A 1727 1683   41 A   1642  
4 A 1276 1244   -31 A   1275  
5 A 1141 1112   36 A   1076  
6 A 606 591   -189 A   780  
7 A 562 547   171 A   377  
8 B 3608 3516   166 B   3350  
9 B 3451 3363   49 B   3314  
10 B 1702 1659   31 B   1628  
11 B 1264 1232   -43 B   1275  
12 B 703 685   -281 B   966  
The calculated vibrational frequencies were scaled by 0.9745

See section Calculated; Vibrations; Scale Factors; Set scaling factors to change the scale factors used here.
See section Calculated; Vibrations; Scale Factors; Calculate a scale factor to determine the least squares best scaling factor.
See section Calculated; Vibrations; Scale Factors; Scale factor uncertainty for information on where the above scaling factor is from.