کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1336278 | 979578 | 2011 | 6 صفحه PDF | دانلود رایگان |

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