Dynamic conformational changes in the molecular rotor of the triangular-shaped AIEgens linker enable diversification of Ln-MOFs with a family of three-connected networksOA
Regulating reaction conditions to manipulate the twisting angle or conformational changes of the molecular rotor modules in triangular-shaped aggregation-induced emission luminogens(AIEgens)can induce the formation of lanthanide metal-organic frameworks(Ln-MOFs)with 3,8-c,32,8-c,and 33,11-c connected network structures,significantly enriching the 3-c connected network family.This work,to our knowledge,is the first to reveal that alterations in the twist angles of molecular rotor modules in triangular-shaped AIEgens can lead to a serial expansion of the family of topological networks based on 3-c connections.Surprisingly,both Eu-MOF and Tb-MOF display linear temperature responses with varying sensitivities in the high and low temperature regions,respectively,facilitating the construction of a dual-region ratiometric fluorescence thermometer.What is more noteworthy is that Tb-MOF can be easily and efficiently fabricated into thin films,maintaining stable and bright yellow-green luminescence even after multiple foldings,which demonstrates its excellent mechanical flexibility and processability potential.This study not only charts a new course for expanding the topological network structure of Ln-MOFs through dynamic AIEgens but also broadens the horizons for the optical applications of multifunctional Ln-MOFs emitters.
De-Xin Chen;Yun-Lan Li;Ru-Yan Li;Wen-Wen Qin;Hai-Ling Wang;Hua-Hong Zou;Fu-Pei Liang;Zhong-Hong Zhu
School of Chemistry and Chemical Engineering,Guangxi Key Laboratory of Electrochemical Energy Materials,Guangxi University,Nanning 530004,ChinaSchool of Resources,Environment and Materials,Guangxi University,Nanning 530004,ChinaSchool of Chemistry and Chemical Engineering,Guangxi Key Laboratory of Electrochemical Energy Materials,Guangxi University,Nanning 530004,ChinaKey Laboratory for Chemistry and Molecular Engineering of Medicinal Resources(Ministry of Education of China),Guangxi Key Laboratory of Chemistry and Molecular Engineering of Medicinal Resources,School of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541004,ChinaSchool of Chemistry and Chemical Engineering,Guangxi Key Laboratory of Electrochemical Energy Materials,Guangxi University,Nanning 530004,ChinaKey Laboratory for Chemistry and Molecular Engineering of Medicinal Resources(Ministry of Education of China),Guangxi Key Laboratory of Chemistry and Molecular Engineering of Medicinal Resources,School of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541004,ChinaKey Laboratory for Chemistry and Molecular Engineering of Medicinal Resources(Ministry of Education of China),Guangxi Key Laboratory of Chemistry and Molecular Engineering of Medicinal Resources,School of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Guilin 541004,ChinaSchool of Chemistry and Chemical Engineering,Guangxi Key Laboratory of Electrochemical Energy Materials,Guangxi University,Nanning 530004,China
化学化工
lanthanide metal-organic frameworksaggregation-induced emission luminogensthree-connected networkstopological connectionslanthanide luminescence
《Nano Research》 2026 (5)
P.1090-1104,15
supported by the National Natural Science Foundation of China(Nos.22505045 and 22503021)Startup Fund of Guangxi University(Nos.ZX1080030424009 and ZX1080030424008)Natural Science Foundation of Guangxi(No.2025GXNSFDA069029)Guangxi University Young and Middle-aged Teachers’Scientific Research Basic Capacity Improvement Project(Nos.2025KY0055 and 2025KY0054)。
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