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. (8th January 2021)

• Record Type: Journal Article
• Authors: Wu, Shuangyan; Song, Zhenfeng; Zhu, Mingchang; Zhang, Ying; Yao, Wei; Kosinova, Marina; Fedin, Vladimir P.; Chen, Jiaqi; Gao, Enjun
• Is Part Of: Applied organometallic chemistry. Volume 35:Number 4(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-01-08
• Subjects: alkali regulation -- ascorbic acid -- controllable assembly -- heteronuclear MOF -- luminescent sensing; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.6160
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : 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. Abstract : Two novel luminescent MOFs from homonuclear Mn (II)‐MOF (1 ) to heteronuclear Mn (II)‐K(I)‐MOF (2 ) have been synthesized by facial alkali regulation. The introduction of K(I) makes 2 porous 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.