特定溶剂对手性咪唑双大环结构和旋热性质的调控。

IF 5 1区化学 Q1 CHEMISTRY, ORGANIC

Organic Letters Pub Date : 2025-10-07 DOI:10.1021/acs.orglett.5c03613

Xu-Lang Chen,Zi-You Zheng,Zhao-Yi Cheng,Cai-Yue Zhao,Yang Gao,Tian Wang,Chunyang Zheng,Jia-Qi Liang,Xin Zhang,Ai-Jiao Guan,Xiaohuan Huang,Han-Yuan Gong

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引用次数: 0

摘要

具有聚集诱导发射（AIE）的手性咪唑双大环在1,4-二恶烷溶液中聚集时表现出不寻常的、可逆的圆二色性（CD）信号反转。在固体状态下，暴露于1,4-二恶烷蒸气显著增强荧光强度和量子产率，并伴有CD螺旋度的逆转。这些结果证明了在大环AIE体系中，由聚集和蒸汽诱导的结构重组驱动的溶剂响应性热交换的罕见例子。

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Regulation of the Structure and Chiroptical Properties of Chiral Imidazolium Bismacrocycles via Specific Solvents.

Chiral imidazolium-based bismacrocycles exhibiting aggregation-induced emission (AIE) display an unusual, reversible inversion of circular dichroism (CD) signals upon aggregation in 1,4-dioxane solution. In the solid state, exposure to 1,4-dioxane vapor significantly enhances fluorescence intensity and quantum yield, accompanied by a concomitant reversal in CD helicity. These results demonstrate a rare example of solvent-responsive chiroptical switching in macrocyclic AIE systems, driven by aggregation and vapor-induced structural reorganization.

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来源期刊

Organic Letters 化学-有机化学

CiteScore

9.30

自引率

11.50%

发文量

1607

审稿时长

1.5 months

期刊介绍： Organic Letters invites original reports of fundamental research in all branches of the theory and practice of organic, physical organic, organometallic,medicinal, and bioorganic chemistry. Organic Letters provides rapid disclosure of the key elements of significant studies that are of interest to a large portion of the organic community. In selecting manuscripts for publication, the Editors place emphasis on the originality, quality and wide interest of the work. Authors should provide enough background information to place the new disclosure in context and to justify the rapid publication format. Back-to-back Letters will be considered. Full details should be reserved for an Article, which should appear in due course.