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/3-21G

Dimer H Donor H Acceptor comment
H2OH2CO water formaldehyde dimer H2O Water H2CO Formaldehyde

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -189.620349 -75.886477 -113.729316 0.004556 12.0  kJ mol-1
Vibrational zero point energy (cm-1) 10929 4169 5594 -1166 -13.9  kJ mol-1
Total         -2.0  kJ mol-1