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A Luminescent Probe for Ratiometric Optical Detection of Hg II and Turn‐On Fluorescent Sensing of Cu II
Author(s) -
Singh Rupinder,
Das Gopal
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201900683
Subject(s) - thiourea , luminescence , fluorescence , naked eye , photochemistry , chemistry , molecule , turn (biochemistry) , mass spectrometry , metal , redox , derivative (finance) , inorganic chemistry , materials science , optoelectronics , organic chemistry , physics , optics , biochemistry , chromatography , financial economics , economics
Luminescent detection of heavy metals continues to be of growing importance considering their increasing inseparable roles in modern day lifestyle. To this end, we report a simple yet interesting thiourea derivative that results in detection of Cu II in a turn‐on fashion via a chemodosimetric redox reaction leading to oxidative cyclization of the chemosensor molecule. Elaborate studies with regard to the sensing process have been performed along with the proposal of a plausible cyclization mechanism of the molecule. Furthermore, the probe optically detects Hg II , yet another heavy metal of prime importance, discernable even to the naked eye. The occurrence of a coordination complex has been proved by UV/Visible spectroscopic experiments as well as ESI‐mass spectrometry.