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_cp_opt/3-21G

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

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -190.325776 -75.707801 -114.609278 0.008697 22.8  kJ mol-1
Vibrational zero point energy (cm-1) 16139 4243 10831 -1066 -12.7  kJ mol-1
Total         10.1  kJ mol-1