Novel probes for selective fluorometric sensing of Fe(II) and Fe(III) based on BODIPY dyes

Two novel boron-dipyrromethene (BODIPY) based fluorescence turn-off sensors, which demonstrate high selectivity and sensitivity toward Fe2+ and Fe3+ ions have been reported. A simple and high yielded synthesis of fluorescent BODIPY derivatives with malonyl unit for sensitization have been described. This approach provides quick, high yielded and low-cost preparation of probes. The two sensors have been comprised of combination of one and two BODIPY fluorophore and a malonyl unit, substituted on meso position of BODIPYs. Synthesized BODIPY derivatives have been characterized via elemental analyses, mass spectrometry, 1H and 13C spectroscopy and their photophyisical properties were investigated by UV- Vis absorption and fluorescence emission spectroscopy. The synthesized sensors (2, 3) have been used as a fluorescent probe towards the selective and sensitive detection of biologically important Fe2+ and Fe3+ ions in tetrahydrofuran by fluorescence spectroscopy. The limit of detection (LOD) have been calculated to be for the BODIPY 2, 14.61 (Fe2+), 1.22 (Fe3+) and for BODIPY 3, 1.16 (Fe2+) and 1.06 (Fe3+).

Keywords:

Borondipyrromethenes, UV-Vis spectroscopy fluorescence, chemosensor,

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Journal of the Turkish Chemical Society Section A: Chemistry-Cover

Başlangıç: 2014
Yayıncı: Türkiye Kimya Derneği

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