C 3对称的丁烯和三吲哚已被广泛用于设计支化光电分子。然而,它们中的大多数在溶液中表现出高的发光效率并且在固态下表现出猝灭的发光。在这里,我们分别选择烷基化的丁烯和三吲哚为中心核,以2-甲基苯基为外围官能团来合成三个支链化合物。结合理论计算探索了它们的光物理性质。这三种化合物表现出良好的溶解性和高固态荧光量子产率。与戊烯化合物相比,三吲哚化合物的吸收和发射峰表现出明显的红移,这表明三吲哚比tr烯具有更高的电子离域作用。
作者:Ted M. Pappenfus、Andrew J. Helmin、Wyatt D. Wilcox、Sarah M. Severson、Daron E. Janzen
DOI:10.1021/acs.joc.9b01525
日期:2019.9.6
Reactions between 3,4-propylenedioxythiophenes (ProDOTs) and N-alkyl isatins under ambient conditions result in isomerically pure indophenine materials as confirmed by TLC and 1H NMR analysis. The resulting low band gap materials exhibit favorable inter- and intramolecular interactions, high thermal stabilities, low energy electronic transitions, and amphoteric redox behavior.
通过TLC和1 H NMR分析证实,在环境条件下3,4-丙烯二氧噻吩(ProDOT)和N-烷基靛红之间的反应产生异构纯的吲哚芬材料。所得的低带隙材料表现出良好的分子间和分子内相互作用,高热稳定性,低能量电子跃迁和两性氧化还原行为。
Thiazolyl hydrazineylidenyl indolones as unique potential multitargeting broad-spectrum antimicrobial agents
bactericidal ability, good antibiofilm activity and promising pharmacokinetic properties, but also could significantly impede the development of bacterial resistance. Preliminary exploration of antibacterial mechanism revealed that THI 6c could effectively penetrate the cell membrane of MRSA and embed DNA to form 6c‒DNA supramolecular complex and thus hinder DNA replication. Moreover, THI 6c could reduce