Novel [3]ferrocenophanes: Syntheses, redox properties and molecular structures of [Fe{(η⁵-C₅H₄)CMe₂}₂PR] (R =

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• 作者：Thomas Hö ; cher ; Arnaldo Cinquantini ; Piero Zanello and Evamarie Hey-Hawkins
• 关键词：[ ; 3&#x5d ; Ferrocenophanes ; P ligands ; Electrochemistry
• 刊名：Polyhedron
• 出版年：2005
• 期刊代码：87_02775387
• 类别：ch
• 出版时间：2005
• 卷：24
• 期：11
• 页码：1340-1346
• 文件大小：266 K

摘要

6,6-Dimethylfulvene reacts with Li₂PR to give Li₂[{(C₅H₄)CMe₂}₂PR] [R = Ph (1), Cy (2)]. The ferrocenophanes [Fe{(η⁵-C₅H₄)CMe₂}₂PR] [R = Ph (3), Cy (4)] are obtained in good yield from the lithium reagents 1 and 2 and FeCl₂. Compounds 3 and 4 were characterised spectroscopically (¹H, ¹³C, ³¹P, IR, MS), and by crystal structure determination. Electrochemical investigation shows that 3 undergoes a one-electron oxidation in CH₂Cl₂ solution, which is chemically reversible on the short timescale of cyclic voltammetry, but in the longer time frame of macroelectrolysis the monocation [3]⁺ forms a new species that we tentatively assign as [Fe{(η⁵-C₅H₄)CMe₂}₂P(O)Ph].