咔唑类衍生物的合成及其室温磷光性能研究  

Synthesis of carbazole derivatives and their room-temperature phosphorescence properties

作　　者：张丹阳 陈祖昱 徐康 李嘉荣 陈云峰 王璨 ZHANG Danyang;CHEN Zuyu;XU Kang;LI Jiarong;CHEN Yunfeng;WANG Can(School of Chemistry and Environmental Engineering,Wuhan Institute of Technology,Wuhan 430205,China)

机构地区：[1]武汉工程大学化学与环境工程学院,湖北武汉430205

出　　处：《武汉工程大学学报》2024年第6期612-617,共6页Journal of Wuhan Institute of Technology

基　　金：国家自然科学基金(22105150);武汉工程大学校内科学研究基金(K2021073);武汉工程大学研究生教育创新基金(CX2021334)。

摘　　要：利用不同种类的烷基链作为合适间隔基团,设计并合成了3个咔唑类衍生物(PhOCz-C_(3),PhOCz-C4和PhOCz-C_(5))。在咔唑基团上引入芳基酮单元,以增强分子内电荷转移和自旋轨道耦合效应。PhOCz-C_(5)具有室温磷光特性,其在晶体中的排列方式呈鱼骨状,其分子间相互作用较强,包括C-H⋯O/C-H⋯N氢键和C-H⋯π相互作用。长程有序的聚集方式可以锁定相邻的分子,以增强晶体整体的刚性,这有利于室温磷光特性的产生。结果表明:通过整合多种分子设计策略获得室温磷光化合物,有助于深入理解有机化合物的堆积形式与光电性能之间的关系,也为刺激响应型材料的设计提供新的思路。Three carbazole derivatives,namely PhOCz-C_(3),PhOCz-C_(4) and PhOCz-C_(5),have been designed and synthesized,using different types of alkyl chains as suitable spacer groups.The aryl ketone unit was introduced onto the carbazole group to enhance the intramolecular charge transfer and spin-orbit coupling effect.PhOCz-C_(5) exhibits room-temperature phosphorescence property,and its arrangement in the crystal is fishbone-shaped,with strong intermolecular interactions,including C-H⋯O/C-H⋯N hydrogen bonds and C-H⋯πinteractions.The long-range ordered aggregation can lock adjacent molecules,enhancing the rigidity of the entire crystal,which is beneficial for the generation of room-temperature phosphorescence characteristics.The results show that integrating multiple molecular design strategies to obtain room-temperature phosphorescent compounds can help us deeply understand the relationship between the stacking form and the photoelectric properties of organic compounds,and also provide new ideas for the design of stimulus-responsive materials.

关 键 词：室温磷光 聚集态 堆积方式 刺激响应型材料 咔唑类衍生物 

分 类 号：O621.22[理学—有机化学]