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Synthesis, crystal structure and electrochemical behavior of di--{salicylidene-[1-(t-butyl)-5-methyl-1H-pyrazole]-formohydra-zino-4 O,N,O':O'}-nitratocopper(II)

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The reaction of Cu(NO3)2 with salicylidene-[1-(t-butyl)-5-methyl-1H-pyrazole]-formohydrazine (Hsal-pfh, 1) gives a binuclear Cu(II) complex [Cu2(sal-pfh)2(NO3)2] (2). The structure of the ligand was characterized by IR, EA, 1H NMR spectroscopy. The binuclear Cu complex was determined by X-ray crystallography and thermal analysis. The two Cu(II) ions are bridged by two O atoms and each copper ion is surrounded by an asymmetric sal-pfh chromophore and a  [image omitted] group. The coordination around each copper can be best described as a distorted square-pyramidal geometry. The electrochemical experimental results indicate that 2 can bind to DNA with good stability.
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Keywords: Binuclear copper complex; Crystal structure; Electrochemical behavior; Thermal analysis

Document Type: Research Article

Affiliations: College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China

Publication date: July 1, 2007

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