Add time:07/19/2019         Source:sciencedirect.com

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.

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