Abstract
An iron complex of dipicolinic acid (dipicH2), formulated as [Fe(dipic)(NO3)(H2O)2]·2H2O (1), was prepared and characterized. Cyclic voltammetric response of bare carbon paste electrode surface in 0.10 mol L−1 phosphate buffer containing 1 at pH = 7 and at various scan rates (10–70 mVs−1) was studied. The apparent charge transfer rate constant, ks, and transfer coefficient, a, for electron transfer [Fe(dipic)(NO3)(H2O)2]·2H2O were calculated as 1/1 ± 0.10 s−1 and 0.49, respectively. Thermal decomposition of 1 in the presence of polyethylene glycol led to the formation of Fe2O3.
Acknowledgments
This research was supported by Science and Research Branch, Islamic Azad University. The crystallographic part was supported by the project 15-12719S of the Czech Science Foundation using instruments of the ASTRA lab established within the Operation program Prague Competitiveness - project CZ.2.16/3.1.00/24510.