
%0 Journal Article
%A Green, RW 
%A Godwin, WG 
%T Thermodynamics of chelation. I. Iron(II) and zinc(II) complexes of Pyridine-2-aldehyde-2'-pyridylhydrazone
%J Australian Journal of Chemistry
%D 1968/05/01
%V 21
%N 5
%P 1165-1173
%K 
%R https://doi.org/10.1071/CH9681165
%U https://www.publish.csiro.au/paper/CH9681165 
%X In dilute solution, pyridine-2-aldehyde-2'-pyridylhydrazone can behave as a diacid base or as a tridentate chelating agent. Its cationic bis complexes further undergo two stages of deprotonation. Equilibrium constants have been measured at seven temperatures from 5º to 60º and over a range of ionic strength. They have been used to derive values of enthalpies and entropies of reaction with H+, Fe2+, and Zn2+. 
