return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Hydrogen bonds

Calculated Energies of Hydrogen Bonds

PBEPBE_cp_opt/6-311+G(3df,2pd)

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

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -132.899100 -76.378111 -56.510045 0.010944 28.7  kJ mol-1
Vibrational zero point energy (cm-1) 12552 4529 7266 -757 -9.1  kJ mol-1
Total         19.7  kJ mol-1