10.6084/m9.figshare.2068767.v1
Evgeny A. Kataev
Evgeny
A. Kataev
Nanett Backmann
Nanett
Backmann
Tatiana A. Shumilova
Tatiana
A. Shumilova
Tobias Rüffer
Tobias
Rüffer
Heinrich Lang
Heinrich
Lang
Calix[4]pyrroles bearing quinolinium moiety for halide sensing in aqueous solution
Taylor & Francis Group
2016
calix[4]pyrrole
anion binding
quinolinium
fluorescence quenching
fluorescent probe
2016-01-29 21:50:08
Journal contribution
https://tandf.figshare.com/articles/journal_contribution/Calix_4_pyrroles_bearing_quinolinium_moiety_for_halide_sensing_in_aqueous_solution/2068767
<p>Sensing of chloride in aqueous solution with high selectivity is a challenging task and has a great potential for cellular imaging and analytical applications in food chemistry. Supramolecular binding motif calix[4]pyrrole has been conjugated with a known fluorescent probe for chloride – a quinolinium dye - through conformationally flexible and rigid linkers. Effects of the supramolecular host on the properties of the fluorescent dye and <i>vice versa</i> have been investigated by NMR, X-ray crystallographic and spectroscopic methods. New fluorescent probes have demonstrated better binding and quenching properties towards chloride, bromide and iodide in a 1:1 water-methanol mixture as compared to free calix[4]pyrrole and the quinolinium dye.</p>