Thermodynamics of protonation of amino acid carboxylate groups from 50 to 125 C

P Wang, JL Oscarson, SE Gillespie, RM Izatt…

Index: Wang, Peiming; Oscarson, John L.; Gillespie, Sue E.; Izatt, Reed M.; Cao, Hongjie Journal of Solution Chemistry, 1996 , vol. 25, # 3 p. 243 - 266

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Citation Number: 17

Abstract

Abstract Flow calorimetry has been used to study the interaction of glycine, DL-α-alanine, DL- 2-aminobutyric acid, β-alanine, 4-aminobutyric acid, and 6-aminocaproic acid with protons in aqueous solutions from 323.15 K to 398.15 K and at 1.52 MPa. LogK, ΔH°, ΔS°, and ΔC p° for the protonation of the carboxylate groups of these amino acids have been obtained at each temperature studied. Equations are given expressing these values as functions of ...