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/6-31+G**

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

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -191.948891 -115.590032 -76.348614 0.010245 26.9  kJ mol-1
Vibrational zero point energy (cm-1) 15953 10823 4509 -621 -7.4  kJ mol-1
Total         19.5  kJ mol-1