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Negative ion formation in potassium-nitromethane collisions

Antunes, R., Almeida, D., Martins, G., Mason, Nigel, Garcia, G., Maneira, M.J.P., Nunes, Y., Limão-Vieira, P. (2010) Negative ion formation in potassium-nitromethane collisions. Physical Chemistry Chemical Physics, 12 (39). pp. 12513-12519. (doi:10.1039/c004467a) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1039/c004467a

Abstract

Ion-pair formation in gaseous nitromethane (CH 3 NO 2 ) induced by electron transfer has been studied by investigating the products of collisions between fast potassium atoms and nitromethane molecules using a crossed molecular-beam technique. The negative ions formed in such collisions were analysed using time-of-flight mass spectroscopy. The six most dominant product anions are NO 2 − , O − , CH 3 NO 2 − , OH − , CH 2 NO 2 − and CNO − . By using nitromethane-d 3 (CD 3 NO 2 ), we found that previous mass 17 amu assignment to O − delayed fragment, is in the present experiment may be unambiguously assigned to OH − . The formation of CH 2 NO 2 − may be explained in terms of dissociative electron attachment to highly vibrationally excited molecules.

Item Type: Article
DOI/Identification number: 10.1039/c004467a
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Nigel Mason
Date Deposited: 18 Jul 2019 09:23 UTC
Last Modified: 18 Jul 2019 09:23 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/74775 (The current URI for this page, for reference purposes)
Mason, Nigel: https://orcid.org/0000-0002-4468-8324
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