کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1309761 | 975220 | 2007 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis, crystal structure and electrochemistry of tetrahedral mono-β-diketonato titanocenyl complexes Synthesis, crystal structure and electrochemistry of tetrahedral mono-β-diketonato titanocenyl complexes](/preview/png/1309761.png)
The synthesis of a variety of tetrahedral β-diketonato titanium(IV) complexes of the type [(C5H5)2Ti(CH3COCHCOR)]+ClO4- with R = CF3, OCH3, C6H5, CH3 and Fc is described. The TiIII/TiIV couples and the Fc/Fc+ couple exhibited chemically and electrochemically reversible cyclic voltammetric behaviour. The formal reduction potential of the TiIII/IV couple increased as the group electronegativity of the R group of the β-diketonato ligand increased. Bulk electrolysis showed that one electron was transferred in the TiIII/IV couple and one electron in the ferrocenyl/ferrocenium redox couple in the ligand. The crystal structure for the R = OCH3 complex showed that this β-keto-ester binds through the carbonyl oxygen of the ester group and not the ether oxygen.
A variety of tetrahedral β-diketonato titanium(IV) complexes of the type [(C5H5)2Ti(CH3COCHCOR)]+ClO4- with R = CF3, OCH3, C6H5, CH3 and Fc were synthesized and characterized. The TiIII/IV couples and the ferrocenyl/ferrocenium ligand based couple exhibited chemically and electrochemically reversible cyclic voltammetric behaviour. Crystal structure for the R = OCH3 complex showed that this ligand binds through the carbonyl oxygen and not the ester oxygen.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 360, Issue 7, 2 May 2007, Pages 2277–2283