Liu Naifang, Chen Zhihui, Fan Wenxuan, Su Jie, Lin Tingting, Xiao Si, Meng Jianqiao, He Jun, Vittal Jagadese J, Jiang Jianzhuang
Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, China.
Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China.
Angew Chem Int Ed Engl. 2022 Mar 14;61(12):e202115205. doi: 10.1002/anie.202115205. Epub 2022 Feb 10.
A series of luminescent frameworks was synthesized from the selective combination of aggregation induced emission (AIE)-linker tetra-(4-carboxylphenyl)ethylene (H TCPE) and Zn . Complex 1 was formed by the close packing of Zn-TCPE hinge, and isostructural complexes 2-5 were constructed by the linkage of Zn-TCPE layer and pillar ligands. These complexes exhibit highly efficient multiphoton excited photoluminescence (MEPL) and concomitant third-harmonic generation (THG). The multiphoton absorption (MPA) parameters of 1 are superior to other multiphoton emission materials including the perovskite nanocrystals. The incorporation of pillar linkers slows down the charge transfer between layers of Zn-TCPE, and the aromatic core of pillar linkers has a great influence on the MPA performance of the corresponding frameworks.
通过聚集诱导发光（AIE）连接体四（4-羧基苯基）乙烯（H-TCPE）与锌的选择性组合，合成了一系列发光框架。配合物1由锌-四羧基苯基乙烯（Zn-TCPE）铰链紧密堆积形成，同构配合物2-5则通过锌-四羧基苯基乙烯层与柱配体的连接构建而成。这些配合物表现出高效的多光子激发光致发光（MEPL）以及伴随的三次谐波产生（THG）。配合物1的多光子吸收（MPA）参数优于包括钙钛矿纳米晶体在内的其他多光子发射材料。柱连接体的引入减缓了锌-四羧基苯基乙烯层间的电荷转移，且柱连接体的芳香核对应框架的MPA性能有很大影响。
