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Issue 79, 2017
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Enhanced detection of explosives by turn-on resonance Raman upon host–guest complexation in solution and the solid state

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Abstract

The recognition of nitroaromatic explosives by a tetrakis-tetrathiafulvalene-calix[4]pyrrole receptor (TTF-C[4]P) yields a “turn on” and fingerprinting response in the resonance Raman scattering observed in solution and the solid state. Intensity changes in nitro vibrations with analyte complexation occur via a mechanism of resonance between the 785 nm laser line and the strongly absorbing charge-transfer chromophore arising from the complex between electron-donating TTF-C[4]P and electron-accepting nitroaromatic explosives. The addition of chloride forms the Cl·TTF-C[4]P complex resetting the system for reuse.

Graphical abstract: Enhanced detection of explosives by turn-on resonance Raman upon host–guest complexation in solution and the solid state

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Publication details

The article was received on 18 Aug 2017, accepted on 10 Sep 2017 and first published on 20 Sep 2017


Article type: Communication
DOI: 10.1039/C7CC06517E
Citation: Chem. Commun., 2017,53, 10918-10921

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    Enhanced detection of explosives by turn-on resonance Raman upon host–guest complexation in solution and the solid state

    E. H. Witlicki, S. Bähring, C. Johnsen, M. V. Solano, K. A. Nielsen, D. W. Silverstein, C. W. Marlatt, L. Jensen, J. O. Jeppesen and A. H. Flood, Chem. Commun., 2017, 53, 10918
    DOI: 10.1039/C7CC06517E

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