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Calculated Energies of Hydrogen Bonds

HF/CEP-121G*

Dimer H Donor H Acceptor comment
H2OCH3OH water methanol dimer H2O Water CH3OH Methyl alcohol

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -40.362488 -16.855061 -23.499343 0.008084 21.2  kJ mol-1
Vibrational zero point energy (cm-1) 16061 4576 10914 -571 -6.8  kJ mol-1
Total         14.4  kJ mol-1