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A new Schiff base as a turn‐off fluorescent sensor for Cu 2+ and its photophysical properties
Author(s) -
Torawane Pritam,
Sahoo Suban K.,
Borse Amulrao,
Kuwar Anil
Publication year - 2017
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3341
Subject(s) - schiff base , fluorescence , titration , chromogenic , detection limit , metal ions in aqueous solution , chemistry , absorption (acoustics) , quenching (fluorescence) , ion , photochemistry , turn (biochemistry) , metal , analytical chemistry (journal) , inorganic chemistry , materials science , crystallography , optics , chromatography , organic chemistry , biochemistry , physics , composite material
A new Schiff base receptor 1 was synthesized and its photophysical properties were investigated by absorption, emission and excitation techniques. Furthermore, its chromogenic and fluorogenic sensing abilities towards various metal ions were examined. Receptor 1 selectively detects Cu 2+ ion through fluorescence quenching and detection was not inhibited in the presence of other metal ions. From fluorescence titration, the limit of detection of receptor 1 as a fluorescent ‘turn‐off’ sensor for the analysis of Cu 2+ was estimated to be 0.35 μM.