Chelation of specific metal ions imparts coplanarity and fluorescence in two imidazo[1,2-a]pyridine derivatives: Potential chemosensors for detection of metal ions in aqueous and biosamples.

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2019
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Abstract
Synthesis and chelation induced fluorescence emission from two imidazo[1,2-a]pyridine derivatives are described. The nonfluorescent molecule 1 containing N and O donor atoms, achieves coplanarity upon interactions with trivalent cations Al, Fe and Cr, that favors fluorescence emission. Molecule 2 containing two N donor atoms attains coplanarity upon interaction with the only Zn and becomes fluorescent. Both molecules 1 and 2 form a 1:1 complex with interacting metal ions. Other trivalent metal ions (including Bi and In) and common divalent metal ions (including Hg and Cd) fail to form any complex with 1 or 2, and they do not interfere in the detection of Zn, Al, Fe or Cr ions. Noninterference of other metal ions renders 1 and 2 suitable for the detection of fungal cells contaminated with Zn, Al, Fe or Cr ions.
Reference Key
mala2019chelationspectrochimica Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Mala, Ramanjaneyulu;Suman, Koorathota;Nandhagopal, Manivannan;Narayanasamy, Mathivanan;Thennarasu, Sathiah;
Journal spectrochimica acta part a, molecular and biomolecular spectroscopy
Year 2019
DOI
S1386-1425(19)30626-2
URL
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