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Controllable self‐assembly from homonuclear Mn (II)‐MOF to heteronuclear Mn (II)‐K(I)‐MOF by alkali‐regulation: A novel mode of structural and luminescent regulation for off–on sensing ascorbic acid
Author(s) -
Wu Shuangyan,
Song Zhenfeng,
Zhu Mingchang,
Zhang Ying,
Yao Wei,
Kosinova Marina,
Fedin Vladimir P.,
Chen Jiaqi,
Gao Enjun
Publication year - 2021
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.6160
Subject(s) - heteronuclear molecule , homonuclear molecule , chemistry , luminescence , ascorbic acid , metal organic framework , selectivity , nanotechnology , molecule , optoelectronics , organic chemistry , materials science , adsorption , food science , catalysis
Luminescent metal‐organic frameworks (LMOFs) as sensors with “turn‐on” detecting ability have attracted much attention and remain challenging yet. Herein, two novel LMOFs from homonuclear Mn (II)‐MOF ( 1 ) to heteronuclear Mn (II)‐K(I)‐MOF ( 2 ) have been synthesized directionally only by alkali regulation. Through the introduction of K(I), heteronuclear 2 exhibits a porous reticulated network with 1D open channels. Both 1 and 2 are highly emissive and show great sensitivity and selectivity, ultrafast response time, and excellent recyclability for “off–on” ascorbic acid sensing. Significantly, the highly permeable channels in 2 allow easy host–guest interaction and contribute to lower detection limit than 1 . The controllable assembly of 1 and 2 realizes a novel mode of structure and luminescence tunability, which is crucial for discovering luminescent materials with high‐performance for real‐time detection applications.