Abstract
Py‐IPH, a pyrene‐based fluorogen with good thermal and mechanical stability was simply prepared by the Schiff base reaction and applied in the detection of antimony. Py‐IPH presented special excimer fluorescence in the mixture of THF and water with 80 % of water, and exhibited perfect fluorescent response to antimony. The mechanism was demonstrated to be the increasing speed of the formation of pyrene excimers in the system owing to the coordination between antimony and IPH group in Py‐IPH. Moreover, based on the special interaction between Py‐IPH and antimony, it could distinguish antimony with other cations well with high specificity and selectivity.
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