A turn-on luminescent europium probe for cyanide detection in water

Sheng Yin Huang, Valérie C. Pierre

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


A luminescent europium probe that responds to cyanide directly in water with a large nine-fold turn-on of the EuIII centered time-gated luminescence is presented. Unlike other CN- probes reported, the mechanism of action of EuIII-Lys-HOPO does not rely on reaction of CN- with the probe, but on direct coordination of CN- to the EuIII ion concomitant with displacement of three inner-sphere water molecules. This unusual coordination of CN- with a lanthanide ion in aqueous solution was confirmed by luminescence lifetime measurements.

Original languageEnglish (US)
Pages (from-to)9210-9213
Number of pages4
JournalChemical Communications
Issue number66
StatePublished - 2018

Bibliographical note

Funding Information:
The authors acknowledge the support of the National Science Foundation provided by INFEWS N/P/H2O:SusChEM CHE-1610832.

Publisher Copyright:
© 2018 The Royal Society of Chemistry.

Copyright 2020 Elsevier B.V., All rights reserved.


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