Chemoselective detection of alkyl halides via an iridium(III) luminescent probe

Chun Wu, Jin Biao Liu, Guodong Li, Suk Yu Wong, Simon Q B Han, Chung Hang Leung, Edmond Dik Lung Ma*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

10 Citations (Scopus)


The high reactivity of alkyl halides towards nucleophiles renders them as acutely toxic and mutagenic agents. Therefore, it is urgent to develop simple, sensitive, and selective methods for the detection of alkylating agents in a wide range of scenarios. Herein, we have designed and synthesized a novel cyclometalated iridium(III) complex Ir_1 as a rapid and effective chemosensor for a range of alkyl halides based on cycloaddition reaction. Ir_1 displayed an enhanced luminescence with the increase of BnBr-thiourea concentration, within a linear range of 0.8–8 μM BnBr-thiourea, and the detection limit at a signal-to-noise ratio of 3 was as low as 0.39 μM.

Original languageEnglish
Pages (from-to)479-482
Number of pages4
JournalDyes and Pigments
Publication statusPublished - Dec 2018

Scopus Subject Areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology

User-Defined Keywords

  • Alkyl halides
  • Chemosensor
  • Iridium


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