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以Keggin型杂多酸为质子源,对亚乙炔基桥连二茂铁-蒽醌有机电子给体(D)-受体(A)π共轭体系(1-FcAq),探讨了质子驱动分子内电子转移及结构转变机理.杂多酸对质子化的亚乙炔基桥连二茂铁-蒽醌共轭配合物有稳定化作用,在空气中得到了稳定的质子附加体.通过元素分析,红外光谱(IR),1H核磁共振(1H NMR)及循环伏安方法(CV)确定了质子附加体的组成及结构.在质子诱导下,电子由二茂铁部位(Fc)向蒽醌部位(Aq)转移,共轭体系重新排列,形成富烯-累积多烯构造变形体.
The Keggin-type heteropolyacid is used as a proton source and the proton-driven proton-driven molecule (1-FcAq) is conjugated to the ethynylene bridged ferrocene-anthraquinone organic electron donor (D) Internal electron transfer and mechanism of structural transformation.The heteropolyacid stabilizes the protonated ethynylene bridged ferrocene-anthraquinone conjugate and stabilizes the proton adduct in the air.Analysis by elemental analysis, The composition and structure of the proton adducts were confirmed by IR, 1H NMR and CV. Under the proton induction, the electron transfer from the ferrocene site (Fc) to the anthraquinone site ( Aq), and the conjugated system rearranged to form a fulvene-cumulate polyene structure variant.