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Synthesis and Crystal Structure of the Copper Complex of 7,16‐Bis(2‐hydroxy‐5‐methylbenzyl)‐1,4,10,13‐tetraoxa‐7,16‐diazacyclooctadecane
Author(s) -
Ma ShuLan,
Zhu WenXiang,
Guo QianLing,
Liu YingChun,
Xu MiaoQiong
Publication year - 2004
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20040220114
Subject(s) - chemistry , copper , deprotonation , crystal structure , octahedron , ligand (biochemistry) , crystallography , mannich reaction , crown ether , electrochemistry , ether , medicinal chemistry , ion , organic chemistry , catalysis , electrode , biochemistry , receptor
A lariat crown ether ligand 7.16‐bis (2‐hydroxy‐5‐methylbenzyl)‐1,4,10,13‐tetraoxa‐7,16‐diazacyclooctadecane (Ll) has been prepared via one‐pot Mannich reaction. Its copper(II) complex Cu‐Ll was synthesized and characterized by elemental analysis, IR and UV‐visible spectroscopy. The crystal structure of the complex has been determined by X‐ray diffraction analysis. The result shows that the copper(II) ion is six‐coordinated by two nitrogen and four oxygen atoms, two from the crown ether and the other two from the deprotonated phenolate anions, forming an elongated octahedral complex. Electrochemical study indicates that the complex undergoes reversible reduction in DMF solution.