Reference Label	Details
2nd Law	Second law analysis
note unc5	The uncertainty was not quoted and is derived by assuming +-50% uncertainty for the equilibrium constant
Szulejko 1993	J. E. Szulejko and T. B. McMahon, J. Am. Chem. Soc. 115, 7839-7848 (1993) Progress toward an Absolute Gas-Phase Proton Affinity Scale