基于平面手性的光学活性三角形大环[2.2]

IF 2.8 4区化学 Q1 CHEMISTRY, ORGANIC

Asian Journal of Organic Chemistry Pub Date : 2025-05-01 DOI:10.1002/ajoc.202500155

Yuki Fujita , Dr. Ryo Inoue , Prof. Yasuhiro Morisaki

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引用次数: 0

摘要

合成了一种含对映纯伪邻位链[2.2]副环环烷骨架的光学活性大环。该分子由苯-乙炔型π -共轭体系组成，折叠成三角形（单手螺旋）结构。由单一π共轭体系得到的π共轭长度的延长导致了较大的摩尔吸收系数和良好的光致发光量子效率。观察到强圆偏振发光（CPL）信号，并通过分子模拟再现了其热学性质。发现该大环具有高各向异性因子和高CPL亮度值，是一种良好的CPL发射体。

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Optically Active Triangle‐shaped Macrocycles Based on Planar Chiral [2.2]Paracyclophane

An optically active macrocycle containing an enantiopure pseudo‐ortho‐linked [2.2]paracyclophane skeleton was synthesized. This molecule consisted of a phenylene‐ethynylene‐typed π‐conjugation system, which was folded to construct a triangle‐shaped (one‐handed helical) structure. The extended π‐conjugation length derived from the single π‐conjugation system resulted in a large molar absorption coefficient and a good photoluminescence quantum efficiency. Intense circularly polarized luminescence (CPL) signals were observed, and the chiroptical properties were reproduced by the molecular simulations. The macrocycle was found to be a good CPL emitter with a high anisotropy factor and high CPL brightness values.

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来源期刊

Asian Journal of Organic Chemistry CHEMISTRY, ORGANIC-

CiteScore

4.70

自引率

3.70%

发文量

372

期刊介绍： Organic chemistry is the fundamental science that stands at the heart of chemistry, biology, and materials science. Research in these areas is vigorous and truly international, with three major regions making almost equal contributions: America, Europe and Asia. Asia now has its own top international organic chemistry journal—the Asian Journal of Organic Chemistry (AsianJOC) The AsianJOC is designed to be a top-ranked international research journal and publishes primary research as well as critical secondary information from authors across the world. The journal covers organic chemistry in its entirety. Authors and readers come from academia, the chemical industry, and government laboratories.