H. Keypour, M. Shayesteh, Abdolhossein Sharifi-Rad
Sep 15, 2008
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Influential Citations
37
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Journal
Journal of Organometallic Chemistry
Abstract
Two new potentially hexadentate N 2 O 4 Schiff base ligands 2-((z)-(2-(2-(2-((z)-3,5-di- tert -butyl-2-hydroxybenzylideneamino) phenoxy) phenoxy) phenylimino) methyl)-4,6-di- tert -butylphenol [H 2 L 1 ] and 2-((z)-(2-(2-(2-((z)-3,5-di- tert -butyl-2-hydroxybenzylideneamino) phenoxy)-5- tert -butylphenoxy) phenylimino) methyl)-4,6-di-tert-butylphenol [H 2 L 2 ] were prepared from the reaction of 3,5-di-tert-butyl-2-hydroxy benzaldehyde with 1,2-bis(2′-aminophenoxy)benzene or 1,2-bis(2′-aminophenoxy)-4-t-butylbenzene, respectively. From the direct reaction of ligands [H 2 L 1 ] and [H 2 L 2 ] with copper(II) and cobalt(II) salts in methanolic solution and in the presence of N(Et) 3 the neutral [CuL 1 ], [CuL 2 ], [CoL 1 ] and [CoL 2 ] complexes were prepared. All complexes were characterized by IR spectra, elemental analysis, magnetic susceptibility, mass spectra, molar conductance ( Λ m ), UV–Vis spectra and in the case of [CuL 2 ] with X-ray diffraction. X-ray crystal structure of [CuL 2 ] showed that the complex contains copper(II) in a distorted square planar environment of N 2 O 2 donors. Three CH/π interactions were observed in the molecular structure of latter complex.