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A Zn-MOF constructed from electron-rich pi-conjugated ligands with an interpenetrated graphene-like net as an efficient nitroaromatic sensor
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK). Changzhou Vocational Institute of Engineering, China.
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
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Number of Authors: 9
2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 51, 45475-45481 p.Article in journal (Refereed) Published
Abstract [en]

A novel zinc-based luminescent metal-organic framework (Zn-MOF) has been successfully constructed based on a designed flexible and electron-rich N-involved linker (HL = 4-(bis(4-(pyridin-4-yl) phenyl) amino) benzoic acid). The framework of this Zn-MOF exhibits a 2-fold interpenetrated network which is composed of (3,3)-c sheets. The Zn-MOF has a strong solid state emission at 512 nm. The luminescence signal of the Zn-MOF can be quenched efficiently by trace amounts of electron-deficient nitroaromatics, especially 2,4,6-trinitrophenol (TNP). The quenching constant (K-sv) for TNP is 2.11 x 10(4) M-1, indicating that this framework can be employed as an excellent chemical sensor for identifying and quantifying TNP. This work highlights a strategy for designing a N-involved p-electron-rich enhanced ligand with nucleophilic properties for MOF-based materials as sensors. It also paves the way toward exploring other more efficient MOF materials as sensors for determining electron-deficient nitroaromatics.

Place, publisher, year, edition, pages
2016. Vol. 6, no 51, 45475-45481 p.
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Chemical Sciences
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URN: urn:nbn:se:su:diva-131578DOI: 10.1039/c6ra00524aISI: 000376120100060OAI: oai:DiVA.org:su-131578DiVA: diva2:943001
Available from: 2016-06-27 Created: 2016-06-21 Last updated: 2016-06-27Bibliographically approved

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Yang, YiLin, Jun-ZhongNasser Abdelhamid, HaniChen, Hong
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Department of Materials and Environmental Chemistry (MMK)
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