A Flexible Interpenetrated Diamondoid Metal-Organic Framework with Aromatic-Enriched Channels as a Preconcentrator for the Detection of Fluorinated Anesthetics

Flexible metal-organic frameworks (MOFs) are dynamic materials that combine long-range structural order with reversible stimulus-responsive phase transitions. In this study, we report the synthesis and characterization of two isoreticular flexible MOFs, and , constructed by combining the ligand tetr...

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Vydáno v:	Chemistry of materials Ročník 37; číslo 6; s. 2230
Hlavní autoři:	Marchetti, Danilo, Riboni, Nicolò, Inge, A Ken, Cheung, Ocean, Gemmi, Mauro, Dalcanale, Enrico, Bianchi, Federica, Massera, Chiara, Pedrini, Alessandro
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	United States 25.03.2025
ISSN:	0897-4756
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Shrnutí:	Flexible metal-organic frameworks (MOFs) are dynamic materials that combine long-range structural order with reversible stimulus-responsive phase transitions. In this study, we report the synthesis and characterization of two isoreticular flexible MOFs, and , constructed by combining the ligand tetra-4-(4-pyridyl)phenylmethane (TPPM) with specific Cu(II) paddle-wheel (CPW) secondary building units (SBUs). These MOFs exhibit reversible transitions between open- and closed-pore forms triggered by external stimuli, such as temperature- and pressure-induced guest removal and uptake. The stability of these frameworks is influenced by the residual equatorial groups on the Cu(II) SBUs, with phenyl-functionalized displaying dynamic behavior characteristic of third-generation soft porous crystals. Notably, exhibited high adsorption affinity toward fluorinated guests, including SF and volatile anesthetics (VAs) such as desflurane and sevoflurane. This material, when used in solid-phase microextraction (SPME) as fiber coating for the preconcentration of these VAs in air, outperformed commercial CAR/PDMS fibers, underscoring the potential of these versatile flexible MOFs in addressing environmental challenges associated with the use of volatile fluorinated compounds.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0897-4756
DOI:	10.1021/acs.chemmater.4c03221