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

B3LYP/6-31G(2df,p)

Dimer H Donor H Acceptor comment
H2ONH3 Water Ammonia Dimer H2O Water NH3 Ammonia

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -132.998150 -76.426078 -56.560246 0.011826 31.0  kJ mol-1
Vibrational zero point energy (cm-1) 0 4528 7277 11805 141.2  kJ mol-1
Total         172.3  kJ mol-1