Research Article


2009, 2: 493-499


Self-Assembly of Luminescent Twisted Fibers Based on Achiral Quinacridone Derivatives

Yunfeng Zhao1, Yan Fan1, Xiaoyue Mu1, Hongze Gao1, Jia Wang1, Jingying Zhang1, Wensheng Yang1, Lifeng Chi2, and Yue Wang1()

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1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
2Physikalisches Institut and Center for Nanotechnology (CeNTech), Universitt Münster, Münster 48149, Germany

Keywords: Twisted fi ber, quinacridone, self-assembly, luminescence
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  • Abstract
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It is a great challenge to spontaneously assemble achiral molecules into twisted nanostructures in the absence of chiral substances. Here we show that two achiral centrosymmetric quinacridone (QA) derivatives, N,N’- di(n-hexyl)-1, 3, 8, 10-tetramethylquinacridone (C6TMQA) and N,N’-di(n-decyl)-1, 3, 8, 10-tetramethylquinac ridone (C10TMQA), can be employed as building blocks to fabricate well-defi ned twisted nanostructures by controlling the solvent composition and concentration. Bowknot-like bundles with twisted fiber arms were prepared from C6TMQA, whilst uniform twisted fibers were generated from C10TMQA in ethanol/THF solution. Spectroscopic characterization and molecular simulation calculations revealed that the introduction of ethanol into the solution could induce a staggered aggregation of C6TMQA (or C10TMQA) molecules and the formation of twisted nanostructures. Such twisted materials generated from achiral organic functional molecules may be valuable in the design and fabrication of new materials for optoelectronic applications.
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Self-Assembly of Luminescent Twisted Fibers Based on Achiral Quinacridone Derivatives. Nano Res. 2009, 2: 493-499

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