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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >A bionic paired hydrogen-bond strategy for extending organic pi-conjugation to regulate emission
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A bionic paired hydrogen-bond strategy for extending organic pi-conjugation to regulate emission

机译:用于延伸有机PI缀合的仿生成对氢键策略以调节排放

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Herein, we first demonstrate a non-covalent strategy that extends the pi-conjugation of fluorophores through bionic paired hydrogen-bond interactions. In well-designed molecular models, 1,8-naphtholactam (Np)-equipped molecules (TPE/HTPE-Np) exhibit highly efficient dual-state emission in a red-shifted region, whereas their acenaphthene (Ap)-equipped counterparts (TPE/HTPE-Ap) reserve typical AIE behaviors with short-wavelength emission. Single-crystal and theoretical analyses prove that these bionic hydrogen-bond interactions enable the facile formation of dimeric TPE/HTPE-Np, resulting in their larger delocalized pi-electron conjugation, thereby playing a crucial role in their unique emission characteristics.
机译:在此,我们首先展示了一种非共价策略,该策略通过仿生成对氢键相互作用扩展荧光团的pi共轭。在设计良好的分子模型中,1,8-萘内酰胺(Np)修饰的分子(TPE/HTPE-Np)在红移区表现出高效的双态发射,而其苊(Ap)修饰的对应物(TPE/HTPE-Ap)保留了短波长发射的典型AIE行为。单晶和理论分析证明,这些仿生氢键相互作用使二聚体TPE/HTPE Np易于形成,从而导致它们更大的离域π电子共轭,从而在其独特的发射特性中发挥关键作用。

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