F2.+ ions have been generated in the external ion source of a FT-ICR mass spectrometer, and their reactivity with a choice of neutrals, ranging from noble gases to polyatomic molecules, has been investigated. With the exception of He and Ne, all neutrals react with F2.+ at the collision controlled limit, yielding predominantly electron transfer and fragmentation products. Noteworthy, a formal F+ transfer process takes place from the reaction of F2.+ with Ar, among the noble gases, and with CO and N2, among diatomic molecules. The unimolecular and bimolecular reactivity of F2H+, obtained from the F2.+ reaction with H2, allowed the proton affinity of elemental fluorine (PA = 79 +/- 5 kcal mol-1) to be experimentally derived.

Positive ion chemistry of elemental fluorine / Cipollini, Romano; Crestoni, Maria Elisa; Fornarini, Simonetta. - In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. - ISSN 0002-7863. - STAMPA. - 119(1997), pp. 9499-9503. [10.1021/ja971290v]

Positive ion chemistry of elemental fluorine

CIPOLLINI, Romano;CRESTONI, Maria Elisa;FORNARINI, Simonetta
1997

Abstract

F2.+ ions have been generated in the external ion source of a FT-ICR mass spectrometer, and their reactivity with a choice of neutrals, ranging from noble gases to polyatomic molecules, has been investigated. With the exception of He and Ne, all neutrals react with F2.+ at the collision controlled limit, yielding predominantly electron transfer and fragmentation products. Noteworthy, a formal F+ transfer process takes place from the reaction of F2.+ with Ar, among the noble gases, and with CO and N2, among diatomic molecules. The unimolecular and bimolecular reactivity of F2H+, obtained from the F2.+ reaction with H2, allowed the proton affinity of elemental fluorine (PA = 79 +/- 5 kcal mol-1) to be experimentally derived.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/244477
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