Volume 59, Issue 12 pp. 4953-4958
Communication

Emerging Cubic Chirality in γCD-MOF for Fabricating Circularly Polarized Luminescent Crystalline Materials and the Size Effect

Liangyu Hu

Liangyu Hu

Beijing National Laboratory for Molecular Science, Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, ZhongGuanCun North First Street 2, Beijing, 100190 China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Kun Li

Kun Li

Beijing National Laboratory for Molecular Science, Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, ZhongGuanCun North First Street 2, Beijing, 100190 China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Weili Shang

Weili Shang

Beijing National Laboratory for Molecular Science, Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, ZhongGuanCun North First Street 2, Beijing, 100190 China

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Dr. Xuefeng Zhu

Corresponding Author

Dr. Xuefeng Zhu

Beijing National Laboratory for Molecular Science, Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, ZhongGuanCun North First Street 2, Beijing, 100190 China

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Prof. Minghua Liu

Corresponding Author

Prof. Minghua Liu

Beijing National Laboratory for Molecular Science, Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, ZhongGuanCun North First Street 2, Beijing, 100190 China

Department Collaborative Innovation Centre of Chemical Science and Engineering, Tianjin, China

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First published: 20 January 2020
Citations: 134

Graphical Abstract

The host–guest interaction between the chiral void of γCD-MOF and achiral luminophores with different charges and sizes are presented. Numerous achiral luminophores could be integrated into γCD-MOF and emitted significantly boosted positive or negative circularly polarized luminescence (CPL). When the size of the guest luminophores was close to the cube size, strong negative CPL was observed.

Abstract

The chiral feature of γCD-MOF, and especially the emergent cubic void, was not unveiled so far. Now, through the host–guest interaction between γCD-MOF and achiral luminophores with different charges and sizes, the unique cubic chirality of the emerging void in γCD-MOF as well as a size effect on CPL induction are revealed for the first time. Numerous achiral luminophores could be integrated into γCD-MOF and emitted significantly boosted circularly polarized luminescence. While the small sized luminophores preferred to be loaded into the intrinsic void of γCD, large ones were selectively encapsulated into the cubic void. Interestingly, when the size of the guest luminophores was close to the cube size, it showed strong negative CPL. Otherwise, either positive or negative CPL was induced.

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