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For the analogue with two terminal triethylene glycol chains, the fluorescence emission at 509\u2005nm responded selectively toward Hg<jats:sup>2+<\/jats:sup> ions, which greatly increased the fluorescence quantum yield from 0.003 to 0.25 as a result of inhibition of the photoinduced electron transfer (PET) process. By introducing two additional rhodamine moieties at the termini, the resulting conjugate could also detect Hg<jats:sup>2+<\/jats:sup> ions in a highly selective manner. Upon excitation at the BODIPY core, the fluorescence emission of rhodamine at 580\u2005nm was observed and the intensity increased substantially upon addition of Hg<jats:sup>2+<\/jats:sup> ions due to inhibition of the PET process followed by highly efficient fluorescence resonance energy transfer (FRET) from the BODIPY core to the rhodamine moieties. The Hg<jats:sup>2+<\/jats:sup>\u2010responsive fluorescence change of these two probes could be easily seen with the naked eye. The binding stoichiometry between the probes and Hg<jats:sup>2+<\/jats:sup> ions in CH<jats:sub>3<\/jats:sub>CN was determined to be 1:2 by Job\u2032s plot analysis and <jats:sup>1<\/jats:sup>H\u2005NMR titration, and the binding constants were found to be (1.2\u00b10.1)\u00d710<jats:sup>11<\/jats:sup>\u2009<jats:sc>m<\/jats:sc><jats:sup>\u22122<\/jats:sup> and (1.3\u00b10.3)\u00d710<jats:sup>10<\/jats:sup>\u2009<jats:sc>m<\/jats:sc><jats:sup>\u22122<\/jats:sup>, respectively. The overall results suggest that these two BODIPY derivatives can serve as highly selective fluorescent probes for Hg<jats:sup>2+<\/jats:sup> ions. The rhodamine derivative makes use of a combined PET\u2010FRET sensing mechanism which can greatly increase the sensitivity of detection.<\/jats:p>","DOI":"10.1002\/asia.201900166","type":"journal-article","created":{"date-parts":[[2019,2,18]],"date-time":"2019-02-18T12:02:41Z","timestamp":1550491361000},"page":"1059-1065","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Selective Detection of Hg<sup>2+<\/sup> Ions with Boron Dipyrromethene\u2010Based Fluorescent Probes Appended with a\u2009Bis(1,2,3\u2010triazole)amino Receptor"],"prefix":"10.1002","volume":"14","author":[{"given":"Wen\u2010Jing","family":"Shi","sequence":"first","affiliation":[{"name":"School of Chemistry and Chemical Engineering Guangzhou University  Guangzhou 510006 China"},{"name":"Department of Chemistry The Chinese University of Hong Kong  Shatin N.T. 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