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Synthesis and Characterization of Bridged Bimetallic Complexes. I. Copper(II) Complexes with Conjugated Diimine Ligands
Author(s) -
Wang WenJwu,
Ho ChiaTai
Publication year - 1985
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198500067
Subject(s) - chemistry , bimetallic strip , copper , diimine , conjugated system , diethylenetriamine , cyclic voltammetry , steric effects , electron paramagnetic resonance , electrochemistry , ligand (biochemistry) , ion , infrared spectroscopy , crystallography , inorganic chemistry , photochemistry , polymer chemistry , stereochemistry , metal , organic chemistry , electrode , polymer , nuclear magnetic resonance , catalysis , biochemistry , physics , receptor
A series of binucleating Uganda with fully conjugated π‐systems have been synthesized. Homobinuclear copper(II) complexes of the form [(Cu( dien )ClO 4 ) 2 L]‐(ClO 4 ) 2 , where dien is diethylenetriamine and L is binucleating ligand, were prepared. Mononuclear complexes, with structure similar to that of the preceeding compounds, [Cu( dien )L′(ClO 4 )](ClO 4 ) were synthesized as reference compounds. The infrared spectra, elctronic spectra and magnetic properties were studied. The inductive effect, steric effect and the effect of the length of the conjugated π‐system on the magnetic exchange interaction between the two copper ions are discussed. The electrochemical properties of these complexes were investigated by cyclic voltammetry. The copper ions showed the cooperative phenomena and a quasi‐reversible sequential transfer of two electrons at the same potential.