Synthesis, crystal structure and antimicrobial properties of a copper(II) complex of an unsymmetrical tripodal ligand
| Autor: | Ming-Yan Wang, Wei-Xing Ma, Hai-Bing Song, Kevin P. Wainwright, Xing-You Xu, Jian Gao |
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| Rok vydání: | 2005 |
| Předmět: |
Stereochemistry
Metal ions in aqueous solution chemistry.chemical_element Crystal structure Copper Crystallography Trigonal bipyramidal molecular geometry chemistry Tripodal ligand Materials Chemistry Orthorhombic crystal system Amine gas treating Physical and Theoretical Chemistry Cyclic voltammetry |
| Zdroj: | Journal of Coordination Chemistry. 58:669-676 |
| ISSN: | 1029-0389 0095-8972 |
| DOI: | 10.1080/00958970500039256 |
| Popis: | A new copper(II) complex of an unsymmetrical tripodal ligand (NN2O222) derived from tris(2-aminoethylamine)amine (tren) by substitution of one aminoethyl group by an hydroxyethyl group has been synthesized and characterized by X-ray crystallographic methods as [(NN2O222)Cu(ImH)](ClO4)2·0.5H2O (NN2O222 = 2-[bis(2-aminoethyl)amino]ethanol; ImH = imidazole). Crystals of the complex are orthorhombic, space group Pna21, with a = 29.983(10), b = 15.568(5), c = 8.127(3) A. Two similar monometallic cations exist in the asymmetric unit and in each case the Cu(II) ion is five-coordinate with tetragonally distorted trigonal bipyramidal geometry. Variable-temperature magnetic measurements show that there is very weak antiferromagnetic interaction between the metal ions. Cyclic voltammetry indicates quasi-reversible CuII/CuI redox behavior at +44 mV vs SCE. An antimicrobial activity study found that the complex is active against Candida albican, Staphylococcus aureus, Bacillus pumilus, Klebosiella pneumoniae and Esche... |
| Databáze: | OpenAIRE |
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