手性苝酰亞胺衍生物的超分子結(jié)構(gòu)與圓偏振發(fā)光性質(zhì)

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中圖分類號：0482.31 文獻(xiàn)標(biāo)識碼：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

超分子自組裝是指構(gòu)筑單元通過弱作用力（如氫鍵、 π-π 堆積、疏水作用力、配位作用及靜電作用等）自發(fā)形成有序結(jié)構(gòu)的過程-2]。（剩余10742字）