Communication

Visible line intensities of the triatomic hydrogen ion from experiment and theory

Annemieke Petrignani, Max H. Berg, Florian Grussie, Andreas Wolf, Irina I. Mizus, Oleg L. Polyansky, Jonathan Tennyson, Nikolai F. Zobov, Michele Pavanello, Ludwik Adamowicz

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The visible spectrum of H3+ is studied using high-sensitivity action spectroscopy in a cryogenic radiofrequency multipole trap. Advances are made to measure the weak ro-vibrational transitions from the lowest rotational states of H3+ up to high excitation energies providing visible line intensities and, after normalisation to an infrared calibration line, the corresponding Einstein B coefficients. Ab initio predictions for the Einstein B coefficients are obtained from a highly precise dipole moment surface of H3+ and found to be in excellent agreement, even in the region where states have been classified as chaotic.

Original languageEnglish (US)
Article number241104
JournalThe Journal of Chemical Physics
Volume141
Issue number24
DOIs
StatePublished - Dec 28 2014

Fingerprint

Excitation energy
Dipole moment
hydrogen ions
Cryogenics
Protons
communication
Spectroscopy
Calibration
Infrared radiation
Communication
rotational states
coefficients
visible spectrum
multipoles
cryogenics
dipole moments
Experiments
traps
sensitivity
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Communication : Visible line intensities of the triatomic hydrogen ion from experiment and theory. / Petrignani, Annemieke; Berg, Max H.; Grussie, Florian; Wolf, Andreas; Mizus, Irina I.; Polyansky, Oleg L.; Tennyson, Jonathan; Zobov, Nikolai F.; Pavanello, Michele; Adamowicz, Ludwik.

In: The Journal of Chemical Physics, Vol. 141, No. 24, 241104, 28.12.2014.

Research output: Contribution to journalArticle

Petrignani, A, Berg, MH, Grussie, F, Wolf, A, Mizus, II, Polyansky, OL, Tennyson, J, Zobov, NF, Pavanello, M & Adamowicz, L 2014, 'Communication: Visible line intensities of the triatomic hydrogen ion from experiment and theory', The Journal of Chemical Physics, vol. 141, no. 24, 241104. https://doi.org/10.1063/1.4904440
Petrignani, Annemieke ; Berg, Max H. ; Grussie, Florian ; Wolf, Andreas ; Mizus, Irina I. ; Polyansky, Oleg L. ; Tennyson, Jonathan ; Zobov, Nikolai F. ; Pavanello, Michele ; Adamowicz, Ludwik. / Communication : Visible line intensities of the triatomic hydrogen ion from experiment and theory. In: The Journal of Chemical Physics. 2014 ; Vol. 141, No. 24.
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