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Enhanced Long Persistent Luminescence by Multifold Interpenetration in Metal–Organic Frameworks
Author(s) -
Wang Zheng,
Zhu ChengYi,
Fu PengYan,
Mo JunTing,
Ruan Jia,
Pan Mei,
Su ChengYong
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202000362
Subject(s) - intramolecular force , luminescence , metal organic framework , materials science , metal , chemical physics , multiplicity (mathematics) , halogen , cluster (spacecraft) , nanotechnology , chemistry , optoelectronics , computer science , organic chemistry , adsorption , metallurgy , mathematical analysis , alkyl , mathematics , programming language
Abstract 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.