Quinoxaline−Imidazolium Receptors for Unique Sensing of Pyrophosphate and Acetate by Charge Transfer
- 5 January 2007
- journal article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 9 (3) , 485-488
- https://doi.org/10.1021/ol062849b
Abstract
[structure: see text] Quinoxaline derivatives (1-4) bearing two imidazolium moieties are found to strongly bind anions and show unique charge-transfer fluorescent responses to pyrophosphate and acetate, whereas they show excimer formation with other anions. Anion-binding studies are investigated with fluorescence and 1H NMR analysis, single-crystal X-ray analysis, and theoretical calculations.Keywords
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