Selective and sensitive morpholine-type rhodamine B-based colorimetric and fluorescent chemosensor for Fe(III) and Fe(II)
| Autor: | Choon Sup Ra, Jisuk Lee, Youngku Sohn, Hoeun Jang, Sun Hee Jeon, Sanghyuck Lee |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Ligand Metal ions in aqueous solution Inorganic chemistry Metals and Alloys 010402 general chemistry Condensed Matter Physics 01 natural sciences Fluorescence 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Metal chemistry.chemical_compound chemistry Morpholine visual_art Materials Chemistry visual_art.visual_art_medium Rhodamine B Qualitative inorganic analysis Electrical and Electronic Engineering Luminescence Instrumentation |
| Zdroj: | Sensors and Actuators B: Chemical. 248:646-656 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2017.04.046 |
| Popis: | The development of chemosensor materials is crucial for the early detection of hazardous materials, such as heavy metal ions and infectious viruses. In this study, three rhodamine B (RhB) derivatives (referred to as Rh-OS , Rh-OO , and Rh-SO ) bearing a morpholine-type 6-membered ring as colorimetric, fluorescent sensors were synthesized, and fluorescence responses to various metal ions (Fe 3+ , Fe 2+ , Pb 2+ , Cr 6+ , Ce 2+ , Mn 2+ , Cd 2+ , Hg 2+ , K + , Na + , Mg 2+ , Li + , Ca 2+ , As 3+ , Co 2+ , Cu 2+ , Ni 2+ , and Zn 2+ ) were investigated. Rh-OS , Rh-OO , and Rh-SO exhibited high sensitivity to Fe 2+ and Fe 3+ , with the formation of a 1:1 (ligand: metal) complex, as evidenced by the UV–vis absorption and photoluminescence spectra. Luminescence turn-on was explained by the transfer of resonance energy from the morpholine-type moiety to the RhB framework. In addition, the selectivity of Fe 3+ and Fe 2+ was evaluated by 2D and 3D photoluminescence imaging. |
| Databáze: | OpenAIRE |
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