Structural conversion and intramolecular electron transfer in ferrocenylanthraquinones triggered by Keggin type of heteropoly acid serving as proton source
Structural conversion and intramolecular electron transfer in ferrocenylanthraquinones triggered by Keggin type of heteropoly acid serving as proton source
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DOI：
10.1360/03wb0165
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发表时间：
2004-03
影响因子：
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通讯作者：
Shuxia Liu;Dehui Li;Z. Su;E. Wang
中科院分区：
文献类型：
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作者：
Shuxia Liu;Dehui Li;Z. Su;E. Wang
讨论了以Keggin型杂多酸为质子源的乙烯桥接二铁-蒽醌有机电子给体(D)-受体(a) π共轭体系（1-FcAq）中质子引发的分子内电子转移和结构转化机理。杂多酸能稳定乙烯桥接二铁-蒽醌的质子化配合物，该稳定的质子化配合物已在空气中分离得到，并通过元素分析、IR、1H NMR和CV进行了表征。在质子的诱导下，电子从二茂铁部分（Fc）转移到蒽醌部分（Aq），导致共轭体系重排，形成富烯-累积烯结构。
Intramolecular electron transfer triggered by proton and the mechanism of structural conversion in a ethynylene-bridged ferrocene-anthraquinone organic electron donor(D)-acceptor(A) π-conjugated system (1-FcAq) in the presence of a Keggin type heteropoly acid as proton source are discussed. Heteropoly acids can stabilize the protonated ethynylene-bridged ferrocene-anthraquinone conjugated complex, and the stable protonated complex has been isolated in air and characterized by elemental analyses, IR, 1H NMR, and CV. Upon the inducement of proton, electron transfer from ferrocene moiety (Fc) to anthraquinone moiety (Aq) causes the rearrangement of the conjugated system to create a fulvene-cumulene structuere.