The gas-phase reactivity of vanadium-containing dianions, NaV3O92- and its hydrated form H2NaV3O102-, were probed towards sulphur dioxide at room temperature by ion-molecule reaction (IMR) experiments in the collision cell of an ion trap mass spectrometer. The sequential addition of two SO2 molecules to the NaV3O92- dianion leads to the breakage of the stable V3O9 backbone, resulting in a charge separation process with the formation of new V-O and S-O bonds. On the contrary, the H2NaV3O102- hydroxide species reacts with SO2, promoting regioselective hydrolysis and bond-forming processes, the latter similar to that observed for the NaV3O92- reactant anion. Kinetic analysis shows that these reactions are fast and efficient with rate constants of the10-9 (-30) cm3 s-1 molecule-1 order of magnitude.

Regioselective bond-forming and hydrolysis reactions of doubly charged Vanadium oxide anions in the gas phase / Salvitti, Chiara; Pepi, Federico; Troiani, Anna; DE PETRIS, Giulia. - In: REACTIONS. - ISSN 2624-781X. - 3:(2022), pp. 254-264. [10.3390/reactions3020019]

Regioselective bond-forming and hydrolysis reactions of doubly charged Vanadium oxide anions in the gas phase

Chiara Salvitti
;
Federico Pepi;Anna Troiani
;
Giulia de Petris
2022

Abstract

The gas-phase reactivity of vanadium-containing dianions, NaV3O92- and its hydrated form H2NaV3O102-, were probed towards sulphur dioxide at room temperature by ion-molecule reaction (IMR) experiments in the collision cell of an ion trap mass spectrometer. The sequential addition of two SO2 molecules to the NaV3O92- dianion leads to the breakage of the stable V3O9 backbone, resulting in a charge separation process with the formation of new V-O and S-O bonds. On the contrary, the H2NaV3O102- hydroxide species reacts with SO2, promoting regioselective hydrolysis and bond-forming processes, the latter similar to that observed for the NaV3O92- reactant anion. Kinetic analysis shows that these reactions are fast and efficient with rate constants of the10-9 (-30) cm3 s-1 molecule-1 order of magnitude.
vanadium oxide reactivity; sulphur dioxide; mass spectrometry; ion-molecule reactions; bond-forming reactions; hydrolysis reactions
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Regioselective bond-forming and hydrolysis reactions of doubly charged Vanadium oxide anions in the gas phase / Salvitti, Chiara; Pepi, Federico; Troiani, Anna; DE PETRIS, Giulia. - In: REACTIONS. - ISSN 2624-781X. - 3:(2022), pp. 254-264. [10.3390/reactions3020019]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1628105
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