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Issue 27, 2020
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Highly emissive phenylene-expanded [5]radialene

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A pentagonal macrocycle (MC5-PER) with radialene topology was facilely synthesized through a selective one-pot Suzuki–Miyaura cross-coupling reaction. The resulting product is endowed with a pentagonal architecture as revealed by its single crystal structure, which affords the smallest ring strain and the best conjugation. As tetraphenylethene subunits are embedded, MC5-PER is highly emissive in the solid state due to the aggregation-induced emission effect. Because of the flexible structure and preferable fibre-like self-assembly, the aggregate of MC5-PER displays interesting polymorphism-dependent emission and acts as a sensitive fluorescence sensor for explosives detection.

Graphical abstract: Highly emissive phenylene-expanded [5]radialene

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Article information

07 Jan 2020
27 Feb 2020
First published
27 Feb 2020

Chem. Commun., 2020,56, 3911-3914
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Highly emissive phenylene-expanded [5]radialene

J. Yu, C. Tang, X. Gu, X. Zheng, Z. Yu, Z. He, X. Li and B. Z. Tang, Chem. Commun., 2020, 56, 3911
DOI: 10.1039/D0CC00122H

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