手性苝酰亚胺衍生物的超分子结构与圆偏振发光性质

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中图分类号：0482.31 文献标识码：ADOI：10.37188/CJL.20250018 CSTR：32170.14.CJL.20250018

Abstract：Chiral luminescent materials have wide application prospect in the field of optics.However，the precise constructionofcircularlypolarized luminescent materialsand theelucidationof the intrinsicrelationship between their supramolecular structures and circularly polarized luminescence properties remain key scientificchallenges that urgently need tobeaddressedin the field ofchiral luminescent materials．In this study，we use perylene dimide（PDI）as the model compound，to introduce chiral substituents and steric hindrance substituents into the PDI system，and thensynthesize two chiral PDIderivatives （namely POSSPDI-B6 and C10C8-PDI-B6）with gelation property. Their supramolecular structures and photophysical propertieswere comprehensively characterized using ultraviolet-visible absorption spectroscopy，fluorescence spectroscopy，X-raydifraction and circularly polarized luminescence spectroscopy，respectively.The experimental results demonstrate that both POSS-PDI-B6 and C10C8-PDI-B6 are capable of forming luminescent gels.Underthe synergistic effects of steric hindrance from POSS and alkylchain substituents，as well as chiral induction from theB6 substituent，the PDI derivatives can assemble into helical supramolecular structures with chiral characteristic，thereby endowing the PDI gels with excellent circularly polarized luminescence property.These results providevaluable theoretical and experimental reference for the design and preparation of chiraloptical materials.

Key Words：perylene diimide； supramolecular structure；gel; circularly polarized luminescence

1引言

超分子自组装是指构筑单元通过弱作用力（如氢键、 π-π 堆积、疏水作用力、配位作用及静电作用等）自发形成有序结构的过程-2]。（剩余10742字）