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RESEARCH PRODUCT
Microporous Triptycene‐Based Affinity Materials on Quartz Crystal Microbalances for Tracing of Illicit Compounds
Frank RomingerSiegfried R. WaldvogelBernd KohlMichael MastalerzUwe H. F. BunzEphraim PrantlPhilipp BieggerDimitrij RyvlinHubert Wadepohlsubject
010405 organic chemistrySupramolecular chemistrySorptionGeneral ChemistryMicroporous material010402 general chemistry01 natural sciencesCombinatorial chemistry0104 chemical sciencesCrystalchemistry.chemical_compoundPiperonalchemistryTriptycenePorosityQuartzdescription
Triptycene-based organic molecules of intrinsic microporosity (OMIMs) with extended functionalized π-surfaces are excellent materials for gas sorption and separation. In this study, the affinities of triptycene-based OMIM affinity materials on 195 MHz high-fundamental-frequency quartz crystal microbalances (HFF-QCMs) for hazardous and illicit compounds such as piperonal and (-)-norephedrine were determined. Both new and existing porous triptycene-based affinity materials were investigated, resulting in very high sensitivities and selectivities that could be applied for sensing purposes. Remarkable results were found for safrole - a starting material for illicit compounds such as ecstasy. A systematic approach highlights the effects of different size of π-surfaces of these affinity materials, allowing a classification of the properties that might be optimal for the design of future OMIM-based affinity materials.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-03-26 | ChemPlusChem |