Enhanced Long Persistent Luminescence by Multifold Interpenetration in Metal–Organic Frameworks

Metal–organic frameworks (MOFs) with long persistent luminescence (LPL) have attracted widespread attention due to potential applications in displays, anticounterfeiting, and so on. However, MOFs often have large pore size, which restricts the formation of efficient inter‐ and intramolecular interac...

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Bibliographic Details
Published in:Chemistry : a European journal 2020-06, Vol.26 (33), p.7458-7462
Main Authors: Wang, Zheng, Zhu, Cheng‐Yi, Fu, Peng‐Yan, Mo, Jun‐Ting, Ruan, Jia, Pan, Mei, Su, Cheng‐Yong
Format: Article
Language:English
Subjects:
cadmium
carboxylate ligands
Chemistry
Heavy metals
interpenetrating frameworks
Luminescence
Metal-organic frameworks
Pore size
Porosity
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Summary:Metal–organic frameworks (MOFs) with long persistent luminescence (LPL) have attracted widespread attention due to potential applications in displays, anticounterfeiting, and so on. However, MOFs often have large pore size, which restricts the formation of efficient inter‐ and intramolecular interactions to realize LPL. Herein, a new approach to achieving LPL in MOFs by multifold interpenetration of discrete frameworks is reported. By comparison between threefold‐ and twofold‐interpenetrating MOFs, it was found that the former, which have higher multiplicity and denser frameworks, can be endowed with enhanced inter‐ and intramolecular interactions, and thus enhanced LPL is obtained. Meanwhile, metal‐cluster and heavy‐halogen effects could also cause variations in LPL duration and color. Persistently luminescing: A new approach to achieving long persistent luminescence (LPL) in metal–organic frameworks (MOFs) by multifold interpenetration of discrete frameworks is reported. Comparison of threefold‐ and twofold‐interpenetrating MOFs revealed that the higher multiplicity and denser frameworks of the former can result in enhanced inter‐ and intramolecular interactions, and thus LPL is facilitated.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.202000362