• 作者： 魏和祥; 林成一; 張信貞
• 作者服務機構： 淡江大學化學系
• 中文摘要： 合成一系列之架橋雙環戍二烯基鐵(biferrocene)之氧化?類，(Fc-X-Fc) (B ) (Fc＝ferrocene, X=Hg, P(ph),TTF, -CH=N-N=CH-, -C(CH )＝N-N＝(CH )C-, -CH＝CH-, -(CH )C＝C(CH )-, -(ph)C＝C(ph)-, B = I ,DDQH-, TCNQ 或 Picrate, n=1或2 ），以梅氏光譜為主，配合紅外、可視光譜及電化學方怯，研究這些言類之鐵原子價狀態，從變溫梅氏光譜，顯示(Fc-TTF-Fc) (I )3/5 I 之鐵原子價在室溫時為 Fe(II)-Fe(III)之混合原子價，當溫度下降至78K時，Fe (III)消失，分子內有原子價轉移之現象。另外，此系列之中性化合物之鐵的氧化電位之高低與架橋之種類有密切之關係。
• 英文摘要： Oxidized salts of bridged biferrocene, (Fc-X-Fc) (B ) (Fc: ferrocene, X=Hg, P(Ph), TTF, -CH=N-N=CH-, -C(CH )=N-N=(CH )C-, -CH=CH-, -(CH )C=C(CH )-, -(C H )C=C (C H )-, B=I , picrate,DDQH- or TCNQ ,n=1, or 2) were prepared and their valence states of iron have been studied by meansof Fe M ssbauer spectroscopy, cyclic voltammetry, infrared and electronic absorption spectroscopies.An interesting temperature dependence of the valence state was observed in the M ssbauer spectra of themixed-valence salt of diferrocenyltetrathiafulvalene, measured at various temperatures from 78K to 300K.Analysis of the results of cyclic voltammogram has shown that the oxidation potentials of ferrocene deriva-tives are sensitive to the variety of bridging moieties.
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