期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 52, 页码 27046-27052出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202111856
关键词
arene-perfluoroarene interactions; energy transfer; hyperbranched microwire networks; light-harvesting; optical waveguiding
资金
- National Natural Science Foundation of China [21971189, 22090022]
- seed foundation from Tianjin University
This study discusses the synthesis of hyperbranched organic microwire networks through a simple solution co-assembly route, resulting in highly aligned and well-connected MW networks with superior optical waveguiding ability. BA acts as an intermediate product to facilitate the regeneration of binary cocrystals, leading to the formation of complex MW arrays during the epitaxial growth process.
We report the synthesis of hyperbranched organic microwire (MW) networks comprising 1,4-bis(pentafluorostyryl)benzene (10Ft) and 9,10-bis(phenylethynyl)anthracene (BA) using a simple solution co-assembly route. Pure 10Ft or BA assemblies cannot produce such complex MW networks; in contrast with a binary cocrystal of 10Ft and BA with a 2:1 molar ratio ((2:1)10Ft:BA), which is formed via intermolecular arene-perfluoroarene (AP) interactions. A new generation of multiple MWs grow epitaxially on the previous generation of MWs to form MW arrays in which BA may also act as an intermediate product to facilitate the regeneration of (2:1)10FI:BA. Highly aligned and well-connected MW networks enable superior optical waveguiding ability. Moreover, a red-emitting dopant, 5,12-bis(phenylethynyl)naphihacene (BN) was incorporated into (2:1).10Ft:BA host MWs, giving light-harvesting hierarchical MW networks via an energy-transfer (ET) process. The realization of the hyperbranched MWs provides us with deep insight into the rational creation of complex branched arrays from functional organic cocrystats.
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