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- Title
A Novel Rhodamine‐Phenolphthalein Architecture for Selective Mercury Ion Detection in Aqueous Media.
- Authors
Hussein, Abdullah Saleh; Lafzi, Ferruh; Bayindir, Sinan; Kilic, Haydar; Toprak, Mahmut
- Abstract
In this study, the primary objective is to synthesize a novel fluorescent Rh‐PP‐Rh compound and explore its extensive range of photochemical behaviors. Initially, the synthesis of the novel Rh‐PP‐Rh was carried out for this purpose. Subsequently, UV‐Vis and fluorescence spectroscopy were employed to investigate the interactions between Rh‐PP‐Rh and a diverse array of ions in aqueous solvent systems. Through fluorescence and UV‐Vis studies, it was observed that Rh‐PP‐Rh demonstrated turn‐on sensor properties in the presence of Hg2+ ions. Furthermore, the limits of detection (LOD) and association constant (Ka) values for Rh‐PP‐Rh/Hg2+ were determined as 334 nM and 9.13×1011 M−2, respectively. Additionally, the reversible studies demonstrated a switchable on/off response upon alternate addition of HgCl2 and [Bu4N]F to Rh‐PP‐Rh. These findings suggest that the probe Rh‐PP‐Rh also possesses specific sensor properties for F− ions in the presence of mercury. In addition, the investigation encompassed an assessment of the visual analysis of the color alterations of Rh‐PP‐Rh both on filter paper and in an EtOH/H2O solution. The findings demonstrated that Rh‐PP‐Rh can be successfully utilized in solutions containing mercury, as it generates significant color transformations.
- Subjects
MERCURY; MERCURY (Planet); FLUORESCENCE spectroscopy; BINDING constant; IONS; MERCURY isotopes; CHEMORECEPTORS
- Publication
ChemPlusChem, 2024, Vol 89, Issue 5, p1
- ISSN
2192-6506
- Publication type
Article
- DOI
10.1002/cplu.202300649