Unusual phenolphthalein-based fluorescent sensors for medium-selective multi-ions sensing in real samples

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta Pub Date : 2025-03-07 DOI:10.1016/j.ica.2025.122641

Abdullah Saleh Hussein , Ferruh Lafzi , Sinan Bayindir , Mahmut Toprak

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引用次数: 0

Abstract

This study aimed to synthesize unusual phenolphthalein-based probes (PPs) and explore their photochemical properties. Synthesized PPs were investigated for their interactions with various ions in aqueous solutions using UV–Vis and fluorescence spectroscopy. PP1 exhibited turn-on fluorescence responses to Al³⁺, Cd²⁺, and Zn²⁺ ions at pH 7, while PP2 responded specifically to Zn²⁺ ions. Notably, pH-dependent selectivity was observed for PP1, with Al³⁺ and Zn²⁺ ions triggering turn-on responses at pH 5 and 9, respectively. Limit of detection (LOD) values and association constants (Kₐ) were determined for these interactions. Additionally, reversible on/off switching behavior was demonstrated for PP1/PP2 upon alternate addition of AlCl₃/ZnCl₂ and [Bu₄N]OH. The effectiveness of PPs for real-world sample analysis was confirmed. Furthermore, the PP2-Cd²⁺ complex exhibited irreversible binding with cyanide and thiocyanide ions.

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.