Rational design of systematic AIEEgens further modified by substituents from a novel chain structure  

作　　者：Hao Lu Kun Wang Beibei Liu Meng Wang Mingming Huang Yue Zhang Jiping Yang 

机构地区：[1]Key Laboratory of Aerospace Advanced Materials and Performance,Ministry of Education,School of Materials Science and Engineering,Beihang University,Beijing 100191,China [2]State Key Laboratory of Advanced Power Transmission Technology,State Grid Global Energy Interconnection Research Institute,Beijing 102211,China

出　　处：《Science China Chemistry》2021年第1期52-60,共9页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China(21574003)。

摘　　要：The expansion of new structures in aggregation-induced emission/aggregation-induced emission enhancement(AIE/AIEE)systems has attracted persistent attention recently,from which more luminescent functional molecules with characteristic skeletons are derived to satisfy specialized applications.In this study,a series of derivatives cored by tetraphenyl enamine with various terminal groups were designed and synthesized based on a novel p-πconjugate chain structure(–C=C–N–).Experimental and theoretical studies reveal that attaching modified groups to enamine core is decisive to achieve successful conversion from non-luminance to AIEE-activity.Moreover,due to different substituent effect on electronic structure,molecular conformation and molecular packing,diverse enamine compounds exhibited prominent substituent tunable emission properties,realizing regulated AIEE effect and multicolor emitting.These results not only offer a new method to design AIEgens/AIEEgens with p-πconjugate chain structures,but also provide in-depth knowledge for functional modifications of more novel AIE/AIEE units and materials.

关 键 词：aggregation-induced emission enhancement chain structure enamine derivatives substituent tunable emission 

分 类 号：TB34[一般工业技术—材料科学与工程]