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Calculated Energies of Hydrogen Bonds

MP2/LANL2DZ

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

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -152.284370 -76.135419 -76.135419 0.013532 35.5  kJ mol-1
Vibrational zero point energy (cm-1) 9773 4415 4415 -942 -11.3  kJ mol-1
Total         24.3  kJ mol-1