Elusive sulfurous acid: Gas-phase basicity and IR signature of the protonated species

Rajeev K. Sinha, Debora Scuderi, Philippe Maitre, Barbara Chiavarino, Maria Elisa Crestoni, Simonetta Fornarini

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The ion corresponding to protonated sulfurous acid, H3SO3+, has been successfully delivered into the gas phase by electrospray ionization of the solution of a suitable precursor and an in-source fragmentation process. The neutral acid is a highly elusive molecule. However, its gas-phase basicity has been ascertained by means of a kinetic study of proton-transfer reactivity. The structure of the H3SO3+ sampled ion has been probed by IRMPD spectroscopy in two complementary IR frequency ranges in conjunction with density functional theory calculations and found to conform to a trihydroxosulfonium ion. The characteristic IR signatures may aid in deciphering the presence of this species in extraterrestrial atmospheres.

Original languageEnglish
Pages (from-to)1605-1610
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume6
Issue number9
DOIs
Publication statusPublished - 07-05-2015

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Sulfur Acids
Alkalinity
Extraterrestrial atmospheres
Gases
signatures
Ions
vapor phases
acids
Acids
Electrospray ionization
ions
Proton transfer
Density functional theory
fragmentation
reactivity
frequency ranges
Spectroscopy
density functional theory
atmospheres
ionization

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Sinha, Rajeev K. ; Scuderi, Debora ; Maitre, Philippe ; Chiavarino, Barbara ; Crestoni, Maria Elisa ; Fornarini, Simonetta. / Elusive sulfurous acid : Gas-phase basicity and IR signature of the protonated species. In: Journal of Physical Chemistry Letters. 2015 ; Vol. 6, No. 9. pp. 1605-1610.
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Elusive sulfurous acid : Gas-phase basicity and IR signature of the protonated species. / Sinha, Rajeev K.; Scuderi, Debora; Maitre, Philippe; Chiavarino, Barbara; Crestoni, Maria Elisa; Fornarini, Simonetta.

In: Journal of Physical Chemistry Letters, Vol. 6, No. 9, 07.05.2015, p. 1605-1610.

Research output: Contribution to journalArticle

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AU - Sinha, Rajeev K.

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AU - Maitre, Philippe

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AU - Crestoni, Maria Elisa

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