Abstract
A di-copper(II) complex of the formula [(dien)Cu(μ-1,6-DAH)Cu(dien)(NO3)2](NO3)2, where μ-1,6-DAH = 1,6-diaminohexane, has been synthesized and characterized by X-ray crystallography, X-ray powder diffraction, thermal gravimetric (TG) and differential thermal analyses, cyclic voltammetry, infrared, ultraviolet visible spectroscopies and elemental analysis methods. It was crystallized in a monoclinic system, space group P21/n, with a = 8.0297(8) Å, b = 12.4937(14) Å, c = 15.3786(15) Å, β = 102.739(8) Å and z = 2. Each copper(II) has a square-based pyramidal coordination geometry with four N atoms building the basal plane (three from dien and one from μ-1,6-DAH). TGA study of the complex revealed the compound to be stable up to 245 °C. Electrochemical behavior of complex and enzyme-like catalytic activity of this complex, as a potential functional model for the active site of tyrosinase, was studied extensively. Kinetic studies show that the complex has the maximum enzymatic activity at pH 8, temperature of 40 °C and ionic strength of 50 mM.
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The support of the Research Council of the University of Tehran is gratefully acknowledged.
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Derakhshankhah, H., Saboury, A.A., Divsalar, A. et al. Synthesis and characterization of a newly designed di-copper(II)-based complex and study of its artificial enzyme catalytic activity. J IRAN CHEM SOC 11, 1381–1390 (2014). https://doi.org/10.1007/s13738-014-0407-9
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DOI: https://doi.org/10.1007/s13738-014-0407-9