In this Frontier article, we provide a brief overview of recent progress in the new organic component installation in metal-organic frameworks (MOFs) by single-crystal to single-crystal transformation. We discuss the criteria for the MOFs which could provide accessible vacant sites for new linker installation. We highlight three different categories of linker installation based on the nature and the roles of the new linkers. The present challenges and future opportunities in this field are also discussed.
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http://dx.doi.org/10.1039/c9dt02335f | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Sun Yat-Sen University, School of Chemistry, CHINA.
Immobilizing organic chromophores within the rigid framework of metal-organic frameworks (MOFs) augments fluorescence by effectively curtailing molecular motions. Yet, the substantial interspaces and free volumes inherent to MOFs can undermine photoluminescence efficiency, as they partially constrain intramolecular dynamics. In this study, we achieved optimization of both one- and two-photon excited fluorescence by incorporating linkers into an interpenetrated tetraphenylethene-based MOF (TPE-MOF).
View Article and Find Full Text PDFInorg Chem
January 2025
Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Blvd, Nanshan District, Shenzhen 518055, P. R. China.
Metal-organic frameworks have received extensive development in the past three decades, which are generally constructed via the reaction between inorganic building units and commercially available or presynthesized organic linkers. However, the presynthesis of organic linkers is usually time-consuming and unsustainable due to multiple-step separation and purification. Therefore, methodology development of a new strategy is fundamentally important for the construction and further exploration of the applications of MOFs.
View Article and Find Full Text PDFJ Am Chem Soc
December 2024
Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Potsdam 14476, Germany.
Automated glycan assembly (AGA) streamlines the synthesis of complex oligosaccharides. The reducing end of the oligosaccharide serves as an attachment site to the polymer support to liberate a free reducing end or an aminopentanol for ready conjugation to carrier proteins or surfaces. The facile installation of different aglycons on oligosaccharides has not been possible via AGA until now.
View Article and Find Full Text PDFChemistryOpen
December 2024
Institut für Chemie, Anorganische Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Golm, Germany.
In this paper, we report on the sensing role of the 1,2,3-triazol unit in a 1,4-diyl arrangement in a fully π-conjugated fluorescent probe 1 (cf. Scheme 1) towards the fluorometric detection of 3d metal ions. The 1,2,3-triazol-1,4-diyl-fluoroionophore 1 was designed in a donor(D)-acceptor(A) arrangement with a 1,2,3-triazol unit as a π-linker between a terpyridine (A) ionophore and a diethylaminocoumarin (D) fluorophore to study the fluorescence behavior towards the divalent 3d metal ions Mn, Fe, Co, Ni, Cu and Zn.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
Department of Chemistry, Texas A&M University, College Station, Texas, 77843, United States.
Linker installation has proven to be an effective strategy for introducing diverse functional groups into metal-organic frameworks (MOFs). Reductants and oxidants are found in various environments, but their accumulation poses a danger due to their high reactivity, necessitating prompt monitoring instantly, particularly in natural environments and industrial processes. In this study, a series of redox-active dyes were successfully incorporated into a flexible Zr-based MOF, PCN-700, through linker installation strategy.
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