AbstractFor THF solutions of an optically active helical poly[3,5-bis(hydroxymethyl)phenylacetylene] derivative bearing a biphenyl group, photoexcitation of the terphenyl moiety at 300 nm led to photoluminescence at 390 nm. On the other hand, the photoluminescence resulting from excitation at 280 nm caused dual emission at 310 and 390 nm, whose intensities were tuned by the polar-solvent stimuli which induced the collapse of the intramolecular stack structure of the side groups, and the change in the emission wavelength accompanied disappearance of the optical activity.For THF solutions of an optically active helical poly[3,5-bis(hydroxymethyl)phenylacetylene] derivative bearing a biphenyl group, photoexcitation of the terphenyl moiety at 300 nm led to photoluminescence at 390 nm. On the other hand, the photoluminescence resulting from excitation at 280 nm caused dual emission at 310 and 390 nm, whose intensities were tuned by the polar-solvent stimuli which induced the collapse of the intramolecular stack structure of the side groups, and the change in the emission wavelength accompanied disappearance of the optical activity.

中文翻译：

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与 π 共轭发色团连接的螺旋聚 [3,5-双（羟甲基）苯乙炔] 的溶剂调谐双发射

摘要对于带有联苯基的旋光螺旋聚[3,5-双(羟甲基)苯乙炔]衍生物的THF溶液，三联苯部分在300 nm处的光激发导致390 nm处的光致发光。另一方面，由 280 nm 激发产生的光致发光导致 310 nm 和 390 nm 的双发射，其强度由极性溶剂刺激调节，导致侧基分子内堆叠结构的坍塌，以及发射波长伴随着光学活性的消失。对于带有联苯基的光学活性螺旋聚[3,5-双（羟甲基）苯乙炔]衍生物的THF溶液，三联苯部分在300 nm处的光激发导致390 nm处的光致发光. 另一方面，