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Upon the addition of Fe<jats:sup>3+<\/jats:sup>, the spirocyclic ring of the probe was opened and a significant enhancement of visible color and fluorescence within the range of 540\u2013700 nm was observed. The colorimetric and fluorescent response to Fe<jats:sup>3+<\/jats:sup> can be conveniently detected even by the naked eye, which provides a facile method for the visual detection of Fe<jats:sup>3+<\/jats:sup>. Job's plot, fluorescence titration and MS indicated the formation of 1:2 complexes between the probes and Fe<jats:sup>3+<\/jats:sup>. The reversibility of the reaction establishes the potential of these probes as chemosensors for Fe<jats:sup>3+<\/jats:sup> detection. Copyright \u00a9 2013 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/bio.2493","type":"journal-article","created":{"date-parts":[[2013,3,5]],"date-time":"2013-03-05T04:06:27Z","timestamp":1362456387000},"page":"557-561","source":"Crossref","is-referenced-by-count":10,"title":["Three colorimetric and off\u2013on fluorescent chemosensors for Fe<sup>3+<\/sup> in aqueous media"],"prefix":"10.1002","volume":"28","author":[{"given":"Meimei","family":"Chai","sequence":"first","affiliation":[{"name":"Phosphorus Chemical Engineering Research Center of Henan Province, Department of Chemistry Zhengzhou University  Zhengzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Man","family":"Li","sequence":"additional","affiliation":[{"name":"Phosphorus Chemical Engineering Research Center of Henan Province, Department of Chemistry Zhengzhou University  Zhengzhou 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