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
CH3OHH2O methanol water dimer CH3OH Methyl alcohol H2O Water

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -192.168142 -115.730345 -76.426078 0.011719 30.8  kJ mol-1
Vibrational zero point energy (cm-1) 15951 10845 4528 -578 -6.9  kJ mol-1
Total         23.9  kJ mol-1