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Calculated Energies of Hydrogen Bonds

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

Dimer H Donor H Acceptor comment
NH3NH3 Ammonia Dimer NH3 Ammonia NH3 Ammonia

Energy components

Dimer Donor Acceptor difference
Energy (hartrees) -56.510042 -56.510045 -56.510045 -56.510047 -148367.1  kJ mol-1
Vibrational zero point energy (cm-1) 15015 7266 7266 -483 -5.8  kJ mol-1
Total         -148372.9  kJ mol-1