Gas-Phase Reactivity of Carbonate Ions with Sulfur Dioxide: an Experimental Study of Clusters Reactions

Anna Troiani; Chiara Salvitti; Giulia de Petris

doi:10.1007/s13361-019-02228-0

Gas-Phase Reactivity of Carbonate Ions with Sulfur Dioxide: an Experimental Study of Clusters Reactions

J Am Soc Mass Spectrom. 2019 Oct;30(10):1964-1972. doi: 10.1007/s13361-019-02228-0. Epub 2019 Jul 8.

Authors

Anna Troiani¹, Chiara Salvitti², Giulia de Petris³

Affiliations

¹ Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy. anna.troiani@uniroma1.it.
² Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy.
³ Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy. giulia.depetris@uniroma1.it.

PMID: 31286448
DOI: 10.1007/s13361-019-02228-0

Abstract

The reactivity of carbonate cluster ions with sulfur dioxide has been investigated in the gas phase by mass spectrometric techniques. SO₂ promotes the displacement of carbon dioxide from carbonate clusters through a stepwise mechanism, leading to the quantitative conversion of the carbonate aggregates into the corresponding sulfite cluster ions. The kinetic study of the reactions of positive, negative, singly, and doubly charged ions reveals very fast and efficient processes for all the carbonate ions.

Keywords: Carbonates; Cluster reactivity; Ion-molecule reactions; Sulfur dioxide.