Study of [FeII(bpy)3]2+ complex encapsulated in zeolite Y
| Autor: | R. Vijayalakshmi, S.K. Kulshreshtha |
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| Rok vydání: | 2008 |
| Předmět: |
Ligand
Analytical chemistry Infrared spectroscopy General Chemistry Nuclear magnetic resonance spectroscopy Quadrupole splitting Condensed Matter Physics Crystallography Bipyridine chemistry.chemical_compound chemistry Mechanics of Materials Mössbauer spectroscopy X-ray crystallography General Materials Science Zeolite |
| Zdroj: | Microporous and Mesoporous Materials. 111:449-454 |
| ISSN: | 1387-1811 |
| DOI: | 10.1016/j.micromeso.2007.08.018 |
| Popis: | Tris complex of Fe II with 2,2′ bipyridine (bpy) ligand, has been encapsulated in the supercages of zeolite Y and characterized by powder X-ray diffraction, Infrared spectroscopy, 57 Fe Mossbauer, effect measurements and multinuclear NMR spectroscopy. The complex was prepared in the supercages of Zeolite Y by exchanging the cations of zeolite Y with Fe II and its subsequent complexing with bpy ligand. Based on the comparison of the results obtained for [Fe II (bpy) 3 ](ClO 4 ) 2 and the [Fe(bpy) 3 ]Y complexes, it has been inferred that there is significant structural distortion for the encapsulated complex and all Fe is present as Fe II in low spin state, which is characterized by isomer shift, δ = 0.37 mm s −1 and quadrupole splitting, Δ E q = 0.81 mm s −1 as revealed by 57 Fe Mossbauer spectroscopic measurements. |
| Databáze: | OpenAIRE |
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