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

PBEPBEultrafine_cp/6-31G*

Dimer H Donor H Acceptor comment
CH3OHH2O methanol water dimer CH3OH Methyl alcohol H2O Water

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -191.901427 -115.569157 -76.322481 0.009789 25.7  kJ mol-1
Vibrational zero point energy (cm-1) 15974 10815 4455 -704 -8.4  kJ mol-1
Total         17.3  kJ mol-1