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Calculated Energies of Hydrogen Bonds

B3LYPultrafine_cp/6-31+G**

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

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -231.482427 -76.434049 -155.041320 0.007057 18.5  kJ mol-1
Vibrational zero point energy (cm-1) 21984 4498 16829 -657 -7.9  kJ mol-1
Total         10.7  kJ mol-1