return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Comparisons > Vibrations > Vibrations

Compare vibrational frequencies in CCCBDB for H2POH (Phosphinous acid)

CCSD(T)/cc-pVQZ

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' 3864 3746           
2 A' 2359 2287           
3 A' 1149 1115           
4 A' 1113 1079           
5 A' 919 891           
6 A' 818 793           
7 A" 2360 2288           
8 A" 926 898           
9 A" 408 396           
The calculated vibrational frequencies were scaled by 0.9697

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.