properties of the phosphine moieties are not affected as could be demonstrated by analysis of the 1J(31P,77Se) coupling constants of the respective selenophosphines. In diferrocenyl ethylene [Fe(η5-C5H3–2-P(S)Ph2–(E)-CHCHFc)(η5-C5H5)] both ferrocenyl units are oxidized separately. In situ spectroelectrochemical measurements revealed that inter-valence charge transfer interactions contribute to the observed redox
型的膦烯基
二茂铁的合成和表征的[Fe(η 5 -C 5 H ^ 3 -2-PR' 2 - (ë)-CH = CHR)(η 5 -C 5 H ^ 5)](R = C 6 ħ 5,4-CL-C 6 H ^ 4,4-OME-C 6 H ^ 4,4-ME-C 6 H ^ 4,4-CN-C 6 H ^ 4,4-AC-C 6 H ^ 4,FC; R'= Ph,MeFur,Cy,邻-Tol,3-Cl-C 6 H 4; FC =
铁(η 5 -C 5 H ^ 5)(η 5 -C 5 H ^ 4),MeFur = 5-甲基
呋喃-2-基,ö -Tol = 2-
甲苯基)和的代表性实例在固体中的分子结构状态进行了讨论。烯基单元是由Heck – Mizoroki C,C交叉偶联或Horner – Wadsworth – Emmons烯烃建立的。
硫保护的膦基(苯基
乙烯基)-
二茂铁的电
化学表征表明,茂
金属单元(E °)的