Thermodynamics of the formation of nickel(II) complexes with L-histidine in aqueous solutions

Thermochemical study of the processes of complexation of cobalt(II) ions with L-histidine in aqueous solution

“…The substantial change in enthalpy with the formation of the СoL + particle ( Table 4) that exceeds Δ r Н of the formation of nickel(II) histidinate with the composition of 1 : 1 in the modulus stands out [15]. We may assume that the third donor group in the СoL + complex (apparently the carboxyl group) participates It can be seen from the figure that an increase in the exothermicity of the processes of complexation with the growth in the ionic strength of the solution is observed for the CoL 2 complex.…”