return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Calculated Energies of Hydrogen Bonds

B3LYP/6-31G(2df,p)

Dimer H Donor H Acceptor comment
H2OCH3OH water methanol dimer H2O Water CH3OH Methyl alcohol

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -192.167698 -76.426078 -115.730345 0.011275 29.6  kJ mol-1
Vibrational zero point energy (cm-1) 16125 4528 10845 -752 -9.0  kJ mol-1
Total         20.6  kJ mol-1