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Calculated Energies of Hydrogen Bonds

PBEPBEultrafine_cp_opt/6-31G*

Dimer H Donor H Acceptor comment
H2OCH3OCH3 water dimethylether dimer H2O Water CH3OCH3 Dimethyl ether

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -231.151992 -76.322481 -154.821356 0.008154 21.4  kJ mol-1
Vibrational zero point energy (cm-1) 22057 4455 16866 -736 -8.8  kJ mol-1
Total         12.6  kJ mol-1