Advanced opto-electronics materials by fullerene and acetylene scaffolding
Advanced opto-electronics materials by fullerene and acetylene scaffolding
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DOI：
10.1351/pac200577111851
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发表时间：
2005-11-01
影响因子：
1.8
通讯作者：
Diederich, F
中科院分区：
文献类型：
--
作者：
Diederich, F
具有特殊光电性质的功能π系统从基础研究和技术应用两个方面得到了广泛的研究。本文报道了通过炔和富勒烯支架获得的新型π共轭体系。线性共轭炔属纳米棒，由单分散聚（三乙炔）（PTA）低聚物组成，并延伸至18 nm的长度，制备调查有效共轭的限制，并探索在何种长度的单分散低聚物达到无限多分散聚合物的性能。与氰乙炔基乙烯（CEE），一个强大的新的电子受体类进行激烈的分子内电荷转移（CT）相互作用与附加的供体。具有不寻常的光电性质的大环支架是全乙炔化的脱氢轮烯、膨胀的radialenes和带有外围二烷基苯胺基供体基团的radiaannulenes。扩展的卟啉-富勒烯共轭物被研究了其新颖的物理和有效的多电荷存储性能。富勒烯和卟啉的自组装，由两个组件之间的弱相互作用，导致前所未有的纳米图案化的表面，通过扫描隧道显微镜（STM）的研究。
Functional pi-systems with unusual opto-electronic properties tire intensively investigated from both fundamental research and technological application viewpoints. This article reports on novel pi-conjugated systems obtained by acetylenic and fullerene scaffolding. Linearly conjugated acetylenic nanorods, consisting of monodisperse poly(triacetylene) (PTA) oligomers and extending up to 18 nm length, were prepared to investigate the limits of effective conjugation and to explore at which length a monodisperse oligomer reaches the properties of an infinite polydisperse polymer. With the cyanoethynylethenes (CEEs), a powerful new class of electron acceptors is introduced that undergo intense intramolecular charge-transfer (CT) interactions with appended donors. Macrocyclic scaffolds with unusual opto-electronic properties are perethynylated dehydroannulenes, expanded radialenes, and radiaannulenes bearing peripheral dialkylanilino donor groups. Extended porphyrin-fullerene conjugates are investigated for their novel photophysical and efficient multicharge storage properties. Self-assembly of fullerenes and porphyrins, governed by weak interactions between the two components, leads to unprecedented nanopatterned surfaces that are investigated by scanning tunneling microscopy (STM).