The synthesis and photophysical properties of halide sensitive acridizinium dyes |
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| Authors: | Richard BC Jagt Mohsen Soleimani Kheibari Mark Nitz |
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| Affiliation: | 1. Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6;2. Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, Canada M5S 3E5;1. Munster High School, Munster, IN 46321, USA;2. Lyman Briggs College, Department of Chemistry, Michigan State University, East Lansing, MI 48825, USA;1. Department of Chemistry, Alzahra University, P.O. Box 1993891176, Tehran, Iran;2. Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran;3. Department of Chemistry, Adam Mickiewicz University, ul. Grunwaldzka 6, 60-780 Poznan, Poland;1. Department of Biology, University of Copenhagen, Ole Maaløes Vej 5, DK-2200 Copenhagen N, Denmark;2. Department of Biochemistry, Temple University School of Medicine, 3307 N Broad St., Philadelphia, PA 19140, USA |
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| Abstract: | A series of acridizinium (benzob]quinolizinium) salts containing methoxy, fluoro and chloro substituents were synthesized and their spectroscopic properties and sensitivity towards halide quenching in water were determined. The salts have substantially improved properties over the commonly employed quinolinium and acridinium fluorophores for the sensing of bromide and iodide ions. Of the substituted acridiziniums investigated, 8,10-difluoro-acridizinium bromide has the best combination of properties as a bromide or iodide sensor. |
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