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Calculated Energies of Hydrogen Bonds

MP2/6-311G*

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) -319.079241 -169.469596 -149.584923 0.024722 64.9  kJ mol-1
Vibrational zero point energy (cm-1) 22661 9676 12422 -563 -6.7  kJ mol-1
Total         58.2  kJ mol-1