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Compare vibrational frequencies in CCCBDB for N2H4 (Hydrazine)

B1B95/3-21G

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 3519 3366   -32 A   3398  
2 A 3384 3238   -91 A   3329  
3 A 1739 1664   22 A   1642  
4 A 1308 1252   -23 A   1275  
5 A 1125 1077   1 A   1076  
6 A 622 596   -184 A   780  
7 A 483 462   85 A   377  
8 B 3526 3373   23 B   3350  
9 B 3371 3225   -89 B   3314  
10 B 1724 1649   21 B   1628  
11 B 1288 1232   -43 B   1275  
12 B 825 789   -177 B   966  
The calculated vibrational frequencies were scaled by 0.9567

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.