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. 2004 Jul 31;25(11):1857–1864. doi: 10.1016/j.peptides.2004.06.018

Table 3.

Chemical reaction energy of the octapeptide cleavage in gaseous phasea

Octapeptide P8 (hartree) −2990.6747
Quatpeptide 1 P4_1 (hartree) −1461.3733
Quatpeptide 2 P4_2 (hartree) −1605.2700
Water (hartree) −76.0107
Energy (ΔE, kJ/mol) 110.8
a

1 Hartree = 2625.5 kJ/mol.