Journal Highlight: A novel luminescent probe enables ratiometric optical detection of Hg(II) and TURN‐ON fluorescent sensing of Cu(II)

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  • Published: Jul 11, 2019
  • Author: spectroscopyNOW
  • Channels: UV/Vis Spectroscopy
thumbnail image: Journal Highlight: A novel luminescent probe enables ratiometric optical detection of Hg(II) and TURN‐ON fluorescent sensing of Cu(II)

A simple thiourea derivative has been reported that detects Cu(II) in a turn‐on fashion via a chemodosimetric redox reaction leading to oxidative cyclization of the chemosensor molecule, and which also detects Hg(II) discernable to the naked eye.

Das, G. and Singh, R. (2019). A novel luminescent probe enables ratiometric optical detection of Hg(II) and TURN‐ON fluorescent sensing of Cu(II). Chemistry – An Asian Journal online

Abstract: 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 detects 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‐MS.

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