Colorimetric detection of Fe3+/2+ and fluorescent detection of Al3+ in aqueous media: applications and DFT calculations. Issue 15 (3rd August 2018)

• Record Type: Journal Article
• Authors: Kim, So Young; Lee, Seong Youl; Kang, Ji Hye; Kim, Min Seon; Kim, Ahran; Kim, Cheal
• Is Part Of: Journal of coordination chemistry. Volume 71:Issue 15(2018)
• Page Start: 2401
• Page End: 2414
• Publication Date: 2018-08-03
• Subjects: Colorimetric -- fluorescent -- ferrous -- ferric -- aluminum ion -- DFT calculations; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2018.1478086
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: A new multifunctional colorimetric and fluorescent chemosensor1 for Fe 3+/2+ and Al 3+ has been synthesized in the one-step procedure. The sensor1 detected both Fe 2+ and Fe 3+ through the color change from yellow to brown and Al 3+ via turn-on fluorescence. The binding stoichiometries of sensor1 with Fe 3+/2+ and Al 3+ were proposed to be 1:1 with the analyses of ESI-mass and Job plot. Importantly, the detection limits of1 for Fe 3+/2+ (2.11 and 2.70 μM) and Al 3+ (3.44 μM) were lower than the EPA guideline (5.37 μM) for Fe 3+/2+ and WHO guideline (7.41 μM) for Al 3+ . Compound1 was used to quantify ferric species (Fe 3+ ) in real samples. Moreover, the sensing processes for Fe 3+/2+ and Al 3+ were proposed with the spectroscopic studies and theoretical calculations. Abstract :