Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Tipus de document

Article

Versió

Versió publicada

Data de publicació

Llicència de publicació

cc-by (c)  Ltaief, LB. et al., 2026
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/231151

Tracking Microhydration of the NaCl Rocksalt Molecule by Quantum Chemical Calculations and Penning Ionization Electron Spectroscopy in Helium Nanodroplets

Títol de la revista

Director/Tutor

ISSN de la revista

Títol del volum

Resum

The microhydration of rock salt (NaCl) molecules was investigated theoretically by density-functional theory and force field calculations and experimentally by high-resolution Penning ionization electron spectroscopy (PIES) in helium nanodroplets. The calculations reveal a transition from contact ion pair structures to solvent-separated ion pairs at n = 12–15. However, it takes n % 17 water molecules to form a complete solvation shell around the Cl− anion and as many as n % 34 to fully hydrate the Na+ cation, thus the entire NaCl molecule. Although NaCl molecules are predicted to be fully submerged inside the droplets, the PIES of NaCl are highly resolved, in stark contrast to other molecular species. Codoping the droplets with a controlled number of n = 1–10 water molecules leads to efficient quenching of the NaCl Penning ionization signal and to its full suppression for n ≳ 30, in line with the calculations.

Citació

Citació

PI PERICAY, Martí, et al. Tracking Microhydration of the NaCl Rocksalt Molecule by Quantum Chemical Calculations and Penning Ionization Electron Spectroscopy in Helium Nanodroplets. Small Structures. 2026. Vol. 7, num. 5, pags. 1-9. [consulted: 3 of August of 2026]. Available at: https://hdl.handle.net/2445/231151

Exportar metadades

JSON - METS

Compartir registre