SYNTHESIS OF NOVEL GROUP 3 AND LANTHANIDES COMPLEXES CONTAINING THE FERROCENYL MOIETYJacopo Segato
, 2016, master's thesis
Abstract: The thesis describes the synthesis of novel yttrium(III), europium(III) and ytterbium(III) complexes with polydentate ligands containing the ferrocenyl moiety. In particular, a chelating beta-diketonate ligand having formula [FcCOCHCOCH3]- has been used for the preparation of homo- and heteroleptic complexes, these last having N-donor ligands such as 1,10-phenanthroline or tris(3,5-dimethylpyrazol-1-yl)borate in their coordination sphere. Further complexes were obtained by reacting bis(diphenylphosphino)ferrocene dioxide with proper Group 3 and lanthanide precursors, having nitromalonaldehyde or bromomalonaldehyde as supporting ligands. In all the cases, the characterizations were corroborated by electrochemical measurements and diffusion spectroscopy. Reversible or quasi-reversible one-electron oxidation of the ferrocenyl moiety was detected for the new complexes, even if the corresponding ferricinium-based compounds resulted quite strong oxidants.
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Summary of found: ...the ferrocenyl moiety. In particular, a chelating beta-diketonate ligand having formula [FcCOCHCOCH3]- has been used...
Keywords: lanthanides, ferrocene, heteropolymetallic complexes, beta-diketonate, cyclovoltammetry
Published: 16.12.2016; Views: 3904; Downloads: 306
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