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Issue 18, 2014
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Synthesis and solid-state structures of a macrocyclic receptor based on the 2,6-bis(2-anilinoethynyl)pyridine scaffold

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Abstract

A fluorescent macrocyclic anion receptor based on the 2,6-bis(2-anilinoethynyl)pyridine scaffold has been synthesized to investigate the mechanism of fluorescence quenching in this class of compounds. X-ray crystallography reveals that the binding pocket of the receptor is a natural host to both H2O and HCl, accommodating either molecule in nearly identical environments. Our studies show that protonation, not collisional quenching, is responsible for the observed fluorescence quenching response.

Graphical abstract: Synthesis and solid-state structures of a macrocyclic receptor based on the 2,6-bis(2-anilinoethynyl)pyridine scaffold

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Publication details

The article was received on 12 Nov 2013, accepted on 03 Jan 2014 and first published on 06 Jan 2014


Article type: Communication
DOI: 10.1039/C3CE42307G
Citation: CrystEngComm, 2014,16, 3703-3706
  • Open access: Creative Commons BY-NC license
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    Synthesis and solid-state structures of a macrocyclic receptor based on the 2,6-bis(2-anilinoethynyl)pyridine scaffold

    J. M. Engle, P. S. Singh, C. L. Vonnegut, L. N. Zakharov, D. W. Johnson and M. M. Haley, CrystEngComm, 2014, 16, 3703
    DOI: 10.1039/C3CE42307G

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