Tunable Multicolor Circularly Polarized Luminescence via Co-assembly of One Chiral Electron Acceptor with Various Donors

作     者：Fang Wang Chengshuo Shen Fuwei Gan Guoli Zhang Huibin Qiu 

作者机构：School of Chemistry and Chemical EngineeringZhangjiang Institute for Advanced StudyFrontiers Science Center for Transformative MoleculesState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai 200240 Key Laboratory of Specially Functional Polymeric Materials and Related Technology(Ministry of Education)School of Material Science and EngineeringEast China University of Science and TechnologyShanghai 200237 

出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)

年 卷 期：2023年第5卷第7期

页      面：1592-1601页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：This work was financially supported by the National Key R&D Program of China(grant no.2020YFA0908100) the National Natural Science Foundation of China(grant nos.92056110 and 22075180) the Innovation Program of Shanghai Municipal Education Commission(grant no.202101070002E00084) the Science and Technology Commission of Shanghai Municipality(grant nos.20JC1415000 and 21XD1421900) the China Postdoctoral Science Foundation(grant no.2019M661480) 

主　　题：circularly polarized luminescence charge transfer chirality co-assembly supramolecular chemistry 

摘      要：Chiroptical materials with multicolor and signinvertible circularly polarized luminescence(CPL)are important for advanced optical devices and display ***,a general strategy is developed to generate CPL with highly tunable emission bands and handedness through charge-transfer(CT)complexation and co-assembly of one chiral non-emissive tetranitrofluorene-based acceptor with various achiral purple to blue emissive *** resulting assemblies exhibit intense CPL with a rich array of colors(519-668 nm)and prominent dissymmetry factors(|glum|)in the range of 10^(-3)-10^(-2).Notably,the CPL sign can be readily inverted by slightly changing the molecular structure of achiral ***-crystal analysis reveals that the donor and acceptor molecules are alternately and asymmetrically packed in a lamellar fashion through CT interactions,leading to efficient transfer of ***,the refined packing is mediated by the intensity and manner of CT interactions,rendering an inversion of *** chiral co-assembly not only occurs for planar achiral donor molecules,but is also accessible to nonplanar conjugated molecules such as[4]helicene ***,the CPL feature of the resulting products can be easily and broadly manipulated,aiming at advanced chiroptical systems.