Antunes, R.; Almeida, D.; Martins, G.; Mason, N. J.; Garcia, G.; Maneira, M. J. P.; Nunes, Y. and Limão-Vieira, P.
|DOI (Digital Object Identifier) Link:||http://doi.org/10.1039/C004467A|
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Ion-pair formation in gaseous nitromethane (CH3NO2) 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 NO2−, O−, CH3NO2−, OH−, CH2NO2− and CNO−. By using nitromethane-d3 (CD3NO2), 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 CH2NO2− may be explained in terms of dissociative electron attachment to highly vibrationally excited molecules.
|Item Type:||Journal Article|
|Copyright Holders:||2010 Royal Society of Chemistry|
|Academic Unit/Department:||Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Astrid Peterkin|
|Date Deposited:||02 Sep 2010 11:13|
|Last Modified:||02 Aug 2016 13:45|
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