Photoswitchable J-Aggregated Processable Organogel by Integrating a Photochromic Acceptor,The Journal of Organic Chemistry

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Photoswitchable J-Aggregated Processable Organogel by Integrating a Photochromic Acceptor
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2019-08-12 00:00:00 , DOI: 10.1021/acs.joc.9b01555
Debabrata Samanta ₁ , Ashish Singh ₁ , Parul Verma ₁ , Sohini Bhattacharyya ₁ , Syamantak Roy ₁ , Tapas Kumar Maji ₁

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A novel π-chromophoric 1,4-bis(anthracenylethynyl)benzene (BAB)-based highly emissive J-aggregated organogel has been synthesized and characterized. Single-crystal structure determination of asymmetric π-chromophoric bola-amphiphilic BAB1 (dodecyl and triethyleneglycolmonomethylether containing side chains of bis(anthracenylethynyl)benzene) supports J-aggregation. Further, a photochromic acceptor chromophore, 4,4′-(perfluorocyclopent-1-ene-1,2-diyl)bis(5-methylthiophene-2-carbaldehyde), is noncovalently encapsulated in the gel and photoswitching studies have been performed based on photochromic Förster resonance energy transfer. The modulated emission of the processable soft material is further exploited for rewritable display. However, BAB2 (dodecyl side chain on both sides) does not show gelation property due to its low solubility.

中文翻译：

集成光致变色受体的可光开关J聚集可加工有机凝胶

合成并表征了一种新型的π发色的1,4-双（蒽基乙炔基）苯（BAB）基高发射J聚集有机凝胶。单晶结构的不对称π发色的两亲BAB1（含有双（蒽基乙炔基）苯侧链的十二烷基和三乙二醇单甲基醚）支持J聚集。此外，将光致变色受体生色团4,4'-（全氟环戊-1-烯-1,2-二基）双（5-甲基噻吩-2-甲醛）包封在凝胶中，并基于光致变色弗斯特共振能量转移。可加工软材料的调制发射进一步用于可重写显示。但是，BAB2 （两侧的十二烷基侧链）由于其低溶解度而没有显示出凝胶化性质。

更新日期：2019-08-12

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