Citation: ZHAO Hai-Yan, LI Na, YANG Xiao-Dong. Two Binuclear Cu(Ⅱ) Complexes of Reduced Schiff Base Ligand Containing Benzimidazole Ring:Syntheses, Structures and Electrochemical Properties[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(9): 1725-1732. doi: 10.11862/CJIC.2018.218 shu

Two Binuclear Cu(Ⅱ) Complexes of Reduced Schiff Base Ligand Containing Benzimidazole Ring:Syntheses, Structures and Electrochemical Properties

College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China

Corresponding author: ZHAO Hai-Yan, hbhaiyanzh@163.com
Received Date: 12 April 2018
Revised Date: 22 June 2018

Figures(5)

Two binuclear copper(Ⅱ) complexes of the reduced Schiff base, namely, HL=2-(((2-(2-benzimidazyl) ethyl)aimino)methyl)phenol (HL) have been synthesized and characterized by C, H and N microanalyses, spectroscopic (FT-IR, UV-Vis) as well as electrochemical techniques and single-crystal X-ray diffraction. The crystal structures of[CuL(CH₃OH)]₂(BF₄)₂ (1) and[CuL(NO₃)₂]₂ (2) show that the Cu(Ⅱ) atoms are bridged by two phenolato oxygen atoms in the dimers. The geometries around Cu(Ⅱ) atoms are distorted square pyramid with the Addison parameters (τ) of 0.31 and 0.35 for 1 and 2, respectively. Furthermore, the complex units in 1 and 2 are linked into 1D and 3D supramolecular networks by H-bonding in the solid state, respectively. The electrochemical studies of 1 and 2 show two quasi-reversible one electron reduction processes.
- binuclear copper complexes,
- reduced Schiff base ligand,
- crystal structure,
- redox properties
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