In EDS ansehen

Photoelectron spectroscopy of metastable AlF− negative ion.

Gespeichert in:
Bibliographische Detailangaben
Titel: Photoelectron spectroscopy of metastable AlF− negative ion.
Autoren: Behera, Nihar Ranjan1 (AUTHOR), Kanakati, Arun Kumar2 (AUTHOR), Barik, Saroj1 (AUTHOR), Dutta, Saurav1 (AUTHOR), Aravind, G.1 (AUTHOR) garavind@iitm.ac.in
Quelle: Journal of Chemical Physics. 7/14/2025, Vol. 163 Issue 2, p1-5. 5p.
Schlagwörter: *PHOTOELECTRON spectroscopy, *BINDING energy, *SPECTROMETRY, *IONS, *EXCITED states, *ANIONS, *SCIENTIFIC observation
Abstract: We present the first experimental observation of the metastable AlF− negative ion. Velocity map imaging of the photoelectrons revealed that an electron is bound by 2.53 eV for AlF− with respect to the first excited state of the AlF neutral, a value much higher than the binding energies measured hitherto for metastable negative ions. Our calculations indicate this metastable state to be a 2Π state of AlF−. The flight times of ions in the present experiments indicate that these ions are long-lived with some ions surviving for such durations. [ABSTRACT FROM AUTHOR]
Datenbank: Academic Search Index
Beschreibung
Abstract:We present the first experimental observation of the metastable AlF− negative ion. Velocity map imaging of the photoelectrons revealed that an electron is bound by 2.53 eV for AlF− with respect to the first excited state of the AlF neutral, a value much higher than the binding energies measured hitherto for metastable negative ions. Our calculations indicate this metastable state to be a 2Π state of AlF−. The flight times of ions in the present experiments indicate that these ions are long-lived with some ions surviving for such durations. [ABSTRACT FROM AUTHOR]
ISSN:00219606
DOI:10.1063/5.0278243