| Summary: | 碩士 === 東海大學 === 化學系 === 99 === The binuclear complex trans-[(isn)(NH3)4Ru(4-NCpy)Fe(CN)5]- was prepared by mixing equimolar of trans-[Ru(NH3)4(isn)(4-NCpy)]2+ and [Fe(CN)5NH3]3- at pH=5 aqueous solution. The mixed valence complex trans-[(isn)(NH3)4Ru(4-NCpy)Fe(CN)5] was obtained by oxidation of trans-[(isn)(NH3)4Ru(4-NCpy)Fe(CN)5]- with one equivalent of peroxy disulfate. The results of UV-vis, infrared and electrochemical studies all suggested that the mixed valence species featured valence-trapped localized system with Ru(II)、Fe(III) oxidation states. The cyclic voltammogram of binuclear complexes exhibited two electron reversible steps at E1/2 =0.519V and 0.847V (vs. NHE). Which correspond to [III, II] + e- [II, II] and [III, III] +e- [III, II], respectively. The mixed valence complex shows an intervalence band at λmax＝830 nm (1.02×103M-1cm-1). The properties of the IT band conform with Hush’s theory.
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