Selective ion sensing in aqueous media with ESIPT active fluorescent probes – A particular case for hypochlorite detection
نویسندگان
چکیده
We report two ESIPT active novel fluorescent probes, 1 and 2, based on benzoxazole benzimidazole units, respectively. Their sensing aptitude towards metal ions in aqueous media is reported. A specific response of to Al3+ and, a lesser extent, Zn2+, was found, while the emission 2 highly impacted by Al3+, Cu2+, Fe2+ Fe3+ either blue shift or quenching emission. Emission also shows relative sensitivity Ni2+ Hg2+ cations. Anions studies revealed unique presence hypochlorite ions, glyphosate aminomethylphosphonic acid have effect decrease intensity 40% 75%, Investigations recognition mechanism led conclusion that inhibiting process deprotonation phenol group, fast but weak interaction taking place between ion 2.
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ژورنال
عنوان ژورنال: Dyes and Pigments
سال: 2023
ISSN: ['1873-3743', '0143-7208']
DOI: https://doi.org/10.1016/j.dyepig.2023.111524