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/3-21G

Dimer H Donor H Acceptor comment
HCONH2CN2H4 formamide aminomethanimine dimer CHONH2 formamide NHCHNH2 aminomethanimine both are donors

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -317.772185 -168.757069 -148.982225 0.032891 86.4  kJ mol-1
Vibrational zero point energy (cm-1) 22540 9686 12134 -720 -8.6  kJ mol-1
Total         77.7  kJ mol-1