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Compare vibrational frequencies in CCCBDB for N2H4 (Hydrazine)

B3LYP/CEP-31G

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 3664 3549   151 A   3398  
2 A 3506 3395   66 A   3329  
3 A 1702 1648   6 A   1642  
4 A 1255 1216   -59 A   1275  
5 A 1155 1119   43 A   1076  
6 A 620 600   -180 A   780  
7 A 491 475   98 A   377  
8 B 3666 3551   201 B   3350  
9 B 3513 3402   88 B   3314  
10 B 1684 1630   2 B   1628  
11 B 1244 1205   -70 B   1275  
12 B 573 555   -411 B   966  
The calculated vibrational frequencies were scaled by 0.9684

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.