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Electron transfer-induced fragmentation of thymine and uracil in atom-molecule collisions

Almeida, D.; Antunes, R.; Martins, G.; Eden, S.; Ferreira da Silva, F.; Nunes, Y.; Garcia, G. and Limão-Vieira, P. (2011). Electron transfer-induced fragmentation of thymine and uracil in atom-molecule collisions. Physical Chemistry Chemical Physics, 13(34) pp. 15657–15665.

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Ion-pair formation has been studied in hyperthermal (30–100 eV) neutral potassium collisions with gas phase thymine (C5H6N2O2) and uracil (C4H4N2O2). Negative ions formed by electron transfer from the alkali atom to the target molecule were analysed by time-of-flight (TOF) mass spectrometry. The most abundant product anions are assigned to CNO and (U–H)/(T–H) and the associated electron transfer mechanisms are discussed. Special emphasis is given to the enhancement of ring breaking pathways in the present experiments, notably CNO formation, compared with free electron attachment measurements.

Item Type: Journal Article
Copyright Holders: 2011 The Owner Societies
ISSN: 1463-9076
Project Funding Details:
Funded Project NameProject IDFunding Body
Life Sciences Interface FellowshipNot SetEPSRC (Engineering and Physical Sciences Research Council)
Not SetNot SetFP7 Marie Curie Reintegration Grant (ERG)
Not SetNot SetITS-LEIF exchange program
Not SetHP2006-0042Spanish–Portuguese Project
Not SetFIS2009-10245Ministerio de Ciencia e Innovación
Not SetNot SetBritish Council Treaty of Windsor program
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 31771
Depositing User: Sam Eden
Date Deposited: 20 Jan 2012 13:56
Last Modified: 26 Feb 2016 13:26
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