ArticleThe journal of physical chemistry. B2022
Fluorescence of KCl Aqueous Solution: A Possible Spectroscopic Signature of Nucleation.
Article in The journal of physical chemistry. B, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Classical Density Functional Treatment of Polydisperse Polarizable Clusters.The journal of physical chemistry. B · 2026Article
- Simulating the Photochemical Birth of the Hydrated Electron in Liquid Water.Nature communications · 2026Article
- Anomalous Water Fluorescence Induced by Solutes.The journal of physical chemistry letters · 2025Article
- Bimodal Ionic Conduction through Polymer Films due to Nano Confinement.Angewandte Chemie (International ed. in English) · 2025Review
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5 authors.
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Abstract
Ion pairing in water solutions alters both the water hydrogen-bond network and ion solvation, modifying the dynamics and properties of electrolyte water solutions. Here, we report an anomalous intrinsic fluorescence of KCl aqueous solution at room temperature and show that its intensity increases with the salt concentration. From the ab initio density functional theory (DFT) and time-dependent DFT modeling, we propose that the fluorescence emission could originate from the stiffening of the hydrogen bond network in the hydration shell of solvated ion-pairs that suppresses the fast nonradiative decay and allows the slower radiative channel to become a possible decay pathway. Because computations suggest that the fluorophores are the local ion-water structures present in the prenucleation phase, this band could be the signature of the incoming salt precipitation.
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