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

MP2=FULL/TZVP

Dimer H Donor H Acceptor comment
H2OH2O water dimer H2O Water H2O Water

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -152.595799 -76.293237 -76.293237 0.009325 24.5  kJ mol-1
Vibrational zero point energy (cm-1) 9746 4499 4499 -747 -8.9  kJ mol-1
Total         15.5  kJ mol-1