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Frontispiece: Anion Binding‐Induced White Light Emission using a Water‐Tolerant Fluorescent Molecular Tweezer
Author(s) -
Kumar Rajesh,
Srivastava Aasheesh
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201681061
Subject(s) - fluorescence , chemistry , photochemistry , aqueous solution , phosphate , acetonitrile , excimer , ion , pyrene , perylene , white light , hydrogen bond , inorganic chemistry , molecule , materials science , organic chemistry , optics , physics , optoelectronics
Anion Selection In their Communication on page 3224 ff., R. Kumar and A. Srivastava report a fluorescent molecular tweezer that selectively binds to dihydrogen phosphate and hydrogen sulfate anions present in water. This binding results in the emission of bluish green fluorescence due to excimer formation by the pyrenes present in the molecular tweezer. Differentiation between the different phosphate species and exclusive detection of dihydrogen phosphate anions down to 13 n m in aqueous acetonitrile mixture is reported. Addition of a red emitter, such as perylene monoimide, yields a composite emission that is perceived as white light by our eyes.