摘要
6,6-Dimethylfulvene reacts with Li2PR to give Li2[{(C5H4)CMe2}2PRx5d; [R = Ph (1), Cy (2)x5d;. The ferrocenophanes [Fe{(η5-C5H4)CMe2}2PRx5d; [R = Ph (3), Cy (4)x5d; 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 [3x5d;+ forms a new species that we tentatively assign as [Fe{(η5-C5H4)CMe2}2P(O)Phx5d;.