首页> 外文期刊>Chemistry: A European journal >T_h-symmetrical Hexakisadducts of C_(60) with a Densely Packed #pi#-donor shell can act as energy-or electron-Transducing systems
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T_h-symmetrical Hexakisadducts of C_(60) with a Densely Packed #pi#-donor shell can act as energy-or electron-Transducing systems

机译:C_(60)的T_h对称六方加合物与密集排列的#pi#供体壳可以充当能量或电子传输系统

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摘要

For the first time several T_h-symmetrical hexakisadducts of C_(60) bearing up to six electro-and photoactive o-phenylene diamine or 9,10-dialkoxyan-thracene moieties were synthesizedandsubjectedtophotoinduced electron/energy-transfer studies.Both donors from a densely packed #pi#-donor shell surroundingthe fullerene core.In these novel core-shell ensembles(7 and 19),either an dfficient energy transfer from the dialkoxyanthracene periphery,or an electron transfer from the o-phenylene diamine periphery transduces the flow of excited-state energy or electrons,respectively,to the fullerene noiety,which resides in the central cors.Dueto the relatively high reduction potential ofthe fullerene core,which is anodically shifted by approx=0.7 V,compared with thatofpristine C_(60),theoutcome oftheseintramolecular reactions depends mainly on the donor ability of the peripheral system.Interestingly,the charge-separated state inthe o-phenylene diamine hepted(7;#tau#=120ns in benzonitrile),an effect that points unequivocally to the optimized storage ofcharges in this highly functionalized fullerene ensemble.
机译:首次合成了多个C_(60)的T_h对称六羰基加合物,最多含六个电活性和光活性邻苯二胺或9,10-二烷氧基蒽-蒽部分,并进行了光诱导的电子/能量转移研究。在富勒烯核周围的#pi#-供体壳。在这些新颖的核壳集成体中(7和19),从二烷氧基蒽环的有效能量转移,或从邻苯二胺二胺的周围的电子转移都可以传导受激-由于富勒烯核的还原电势相对较高,与原始的C_(60)相比,阳极迁移的电势大约为0.7 V,因此富勒烯核的还原电势较高,从而使能量或电子分别处于富勒烯中心的中心。有趣的是,邻苯二胺中的电荷分离状态(7;#tau#= 120ns,在苯甲腈中)杂化。毫无疑问,这是指在这种高度功能化的富勒烯整体中电荷的优化存储。

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