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Microporous triptycene-based affinity materials on quartz crystal microbalances for tracing of illicit compounds

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 microb...

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Main Authors: Prantl, Ephraim Adam Isaac (Author) , Kohl, Bernd (Author) , Ryvlin, Dimitrij (Author) , Biegger, Philipp (Author) , Wadepohl, Hubert (Author) , Rominger, Frank (Author) , Bunz, Uwe H. F. (Author) , Mastalerz, Michael (Author) , Waldvogel, Siegfried R. (Author)
Format: Article (Journal)
Language:English
Published: 11 April 2019
In: ChemPlusChem
Year: 2019, Volume: 84, Issue: 9, Pages: 1239-1244
ISSN:2192-6506
DOI:10.1002/cplu.201900189
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/cplu.201900189
Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/cplu.201900189
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Author Notes:Ephraim Prantl, Bernd Kohl, Dimitrij Ryvlin, Philipp Biegger, Hubert Wadepohl, Frank Rominger, Uwe H.F. Bunz, Michael Mastalerz, and Siegfried R. Waldvogel
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Summary: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.
Item Description:Gesehen am 05.03.2020
Physical Description:Online Resource
ISSN:2192-6506
DOI:10.1002/cplu.201900189

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