Protonated sulfuric acid: Vibrational signatures of the naked ion in the near- and Mid-IR

Rajeev K. Sinha, Barbara Chiavarino, Simonetta Fornarini, Joel Lemaire, Philippe Maitre, Maria Elisa Crestoni

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The species formally obtained from the protonation of sulfuric acid is examined as a naked ion in the gas phase, and its IR spectral features are reported. The major fundamental vibrational bands have been acquired in both the 700-1700 and the 3400-3800 cm-1 spectral ranges using state of the art equipment at the CLIO facility, namely, FT-ICR mass spectrometry coupled to the tunable IR beam of either a free electron laser or a tabletop optical parametric oscillator/amplifier (OPO/OPA) laser source. In this way, the structural features of the sampled ion could be ascertained and found to conform to the most stable isomer on the [H3,S,O4]+ potential energy surface. The experimental IR multiple photon dissociation (IRMPD) spectrum is in fact consistent with the IR spectrum calculated for the trihydroxyoxosulfonium cation OS(OH)3+, providing a conclusive structural probe.

Original languageEnglish
Pages (from-to)1721-1724
Number of pages4
JournalJournal of Physical Chemistry Letters
Volume1
Issue number11
DOIs
Publication statusPublished - 03-06-2010

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sulfuric acid
Sulfuric acid
signatures
Ions
Optical parametric oscillators
Potential energy surfaces
Protonation
Free electron lasers
parametric amplifiers
free electron lasers
Isomers
Mass spectrometry
Cations
ions
mass spectroscopy
Photons
isomers
amplifiers
Gases
Positive ions

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Sinha, Rajeev K. ; Chiavarino, Barbara ; Fornarini, Simonetta ; Lemaire, Joel ; Maitre, Philippe ; Crestoni, Maria Elisa. / Protonated sulfuric acid : Vibrational signatures of the naked ion in the near- and Mid-IR. In: Journal of Physical Chemistry Letters. 2010 ; Vol. 1, No. 11. pp. 1721-1724.
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abstract = "The species formally obtained from the protonation of sulfuric acid is examined as a naked ion in the gas phase, and its IR spectral features are reported. The major fundamental vibrational bands have been acquired in both the 700-1700 and the 3400-3800 cm-1 spectral ranges using state of the art equipment at the CLIO facility, namely, FT-ICR mass spectrometry coupled to the tunable IR beam of either a free electron laser or a tabletop optical parametric oscillator/amplifier (OPO/OPA) laser source. In this way, the structural features of the sampled ion could be ascertained and found to conform to the most stable isomer on the [H3,S,O4]+ potential energy surface. The experimental IR multiple photon dissociation (IRMPD) spectrum is in fact consistent with the IR spectrum calculated for the trihydroxyoxosulfonium cation OS(OH)3+, providing a conclusive structural probe.",
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Protonated sulfuric acid : Vibrational signatures of the naked ion in the near- and Mid-IR. / Sinha, Rajeev K.; Chiavarino, Barbara; Fornarini, Simonetta; Lemaire, Joel; Maitre, Philippe; Crestoni, Maria Elisa.

In: Journal of Physical Chemistry Letters, Vol. 1, No. 11, 03.06.2010, p. 1721-1724.

Research output: Contribution to journalArticle

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AU - Sinha, Rajeev K.

AU - Chiavarino, Barbara

AU - Fornarini, Simonetta

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AU - Maitre, Philippe

AU - Crestoni, Maria Elisa

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