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Synthesis, crystal structure and electrocatalytic behavior of a copper (II) complex derived from acylpyrazolone double Schiff bases
Author(s) -
Zhang HuiHui,
Li JinZhou,
Zhang HengQiang,
Li Peng
Publication year - 2014
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201300371
Subject(s) - schiff base , monoclinic crystal system , chemistry , crystal structure , crystallography , supramolecular chemistry , ligand (biochemistry) , copper , cyclic voltammetry , electrochemistry , ethylenediamine , inorganic chemistry , electrode , organic chemistry , biochemistry , receptor
A new double Schiff base complex, Cu(PMαFP) 2 en (HPMαFP = 1‐phenyl‐3‐methyl‐4‐(2‐furoyl)‐5‐pyrazolone, en = ethylenediamine), has been synthesized and characterized by elemental analysis, IR, UV, fluorescence spectra, thermal analysis, X‐ray single crystal diffraction and cyclic voltammetry (CV). Its crystal structure is monoclinic with space group Pbca and cell parameters: a = 22.263(3)Å, b = 13.671(2)Å, c = 10.0920(16)Å, Z = 4, S = 1.028, R 1 = 0.0500 and wR 2 = 0.1285. It was found that the Cu 2+ ion is located in the coordination center. The Cu(II) has a slightly distorted plane quadrilateral coordination environment with two oxygen atoms and two nitrogen atoms of double Schiff base ligand in the equatorial plane. The complex has a one‐dimensional chain supramolecular structure, which is connected by CH…N bonding interactions. In the electrochemical experiments, the CV curve displays an oxidation peak in the presence of uric acid with Ep = 0.216V in pH = 7.0, showing that the Cu(PMαFP) 2 en/glassy carbon modified electrode has an electrocatalytic activity toward uric acid.