Coiled-coil gel nanostructures of oligo(p-phenylenevinylene)s:: Gelation-induced helix transition in a higher-order supramolecular self assembly of a rigid π-conjugated system

被引：192

作者：

George, SJ ^{[1
]}

Ajayaghosh, A ^{[1
]}

Jonkheijm, P ^{[1
]}

Schenning, APHJ ^{[1
]}

Meijer, EW ^{[1
]}

机构：

[1] CSIR, Reg Res Lab, Photosci & Photon Div, Trivandrum 695019, Kerala, India

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 26期

关键词：

helical structures; nanostructures; organogels self-assembly; supramolecular chemistry;

D O I：

10.1002/anie.200453874

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Left-handed-helical nanoropes are formed from higher-order self-assemblies of chiral aggregates during the gelation of a rigid π-conjugated oligo(p-phenylenevinylene) with remote chiral handles (see picture; R = C 12H25). The concentration- and temperature-dependent CD-signal changes observed for these assemblies are indicative of a helix transition. This process is reminiscent of the folding and unfolding of helical biological macromolecules.

引用

页码：3422 / 3425

页数：4

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