Figure 6.
Pseudo-first-order rate constants (kd) of the ligand exchange reactions of [] () and [] () wih HxHBED(x−4) as a function of –log[H+] and [OH−] (x = 0,1, and 2). Solid lines and symbols represent calculated and experimental kd pseudo-first-order rate constants, respectively. ([Ga(TRAP)] = [Fe(TRAP)] = 0.2 mM, [HxHBED] = 2.0 mM (), and 4.0 mM (
), 0.15 M NaCl, 25°C).