Two distyryl-BODIPY-based NIR red-shifting ratiometric fluorescent probes are reported: KBHR-1 for pH and KBAHgR-1 for Ag(+) and Hg(2+). KBHR-1 showed a red-shifting ratiometric response to pH in the NIR region. The identical fluorophore core structure applied to KBAHgR-1 with a different recognition moiety resulted in a ratiometric response to Ag(+) and Hg(2+) in the NIR region.
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| http://dx.doi.org/10.1021/acs.orglett.5b01299 | DOI Listing |
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