کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1336278 | 979578 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterization of an iron(III) complex of glycine derivative of bis(phenol)amine ligand in relevance to catechol dioxygenase active site Synthesis and characterization of an iron(III) complex of glycine derivative of bis(phenol)amine ligand in relevance to catechol dioxygenase active site](/preview/png/1336278.png)
A glycine derivative of bis(phenol)amine ligand (HLGly) was synthesized and characterized by 1H NMR and IR spectroscopies. The iron(III) complex (LGlyFe) of this ligand was synthesized and characterized by IR, UV–Vis, X-ray and magnetic susceptibility studies. X-ray analysis reveals that in LGlyFe the iron(III) center has a distorted trigonal bipyramidal coordination sphere and is surrounded by an amine nitrogen, a carboxylate and two phenolate oxygen atoms. The mentioned carboxylate group acts as μ-bridging ligand for iron centers of neighbor complexes. The variable-temperature magnetic susceptibility indicates that LGlyFe is the paramagnetic high spin iron(III) complex. It has been shown that electrochemical oxidation of this complex is ligand-centered due to the oxidation of phenolate to the phenoxyl radicals. The LGlyFe complex also undergoes an electrochemical metal-centered reduction of ferric to ferrous ion. The oxygenation of 3,5-di-tert-butyl-catechol, with LGlyFe in the presence of dioxygen was investigated.
A glycine derivative of a bis(phenol)amine ligand (HLGly) was synthesized and characterized by 1H NMR and IR spectroscopies. The iron(III) complex (LGlyFe) of this ligand was synthesized and characterized by IR, UV–Vis, X-ray and magnetic susceptibility studies.Figure optionsDownload as PowerPoint slideResearch highlights
► An iron(III) complex of glycine derivative of bis(phenol)amine synthesized.
► The complex displayed paramagnetic properties.
► Electrochemical oxidation of complexes yielded the corresponding oxidized or reduced species.
► The oxygenation of 3,5-di-tert-butyl-catechol, with this complex was investigated.
Journal: Polyhedron - Volume 30, Issue 7, 27 April 2011, Pages 1219–1224