@article{2769f881d93e409caf25a1bc76aaf1a4,
title = "New Fragmentation Pathways in K-THF Collisions As Studied by Electron-Transfer Experiments: Negative Ion Formation",
abstract = "Time-of-flight (TOF) negative ion mass spectra have been obtained in collisions of 20-100 eV neutral potassium atoms with tetrahydrofuran (C4H8O), an analogue for the sugar unit in DNA/RNA. Major enhancements in O- and C2H3O- production were observed compared with earlier dissociative electron attachment (DEA) experiments. In further contrast with DEA, no evidence was observed for dehydrogenated parent anions, and three new fragment anions were detected: CH-, C-2(-), and C2H-. These contrasting results for potassium impact and DEA highlight significant differences in the reaction pathways initiated by the two electron delivery processes.",
keywords = "LOW-ENERGY-ELECTRON , PHASE DEOXYRIBOSE ANALOGS , STIMULATED DESORPTION , CROSS-SECTIONS , TETRAHYDROFURAN , DISSOCIATION , SPECTROSCOPY , SCATTERING , POSITRON , ETHERS",
author = "Diogo Almeida and {Ferreira da Silva}, F. and Samuel Eden and Gustavo Garcia and P. Limao-Vieira",
note = "D.A. and F.F.S. acknowledge the Portuguese Foundation for Science and Technology (FCT-MEC) for postgraduate SFRH/BPD/99261/2013 and postdoctoral grants SFRH/BPD/68979/2010, respectively. We also acknowledge partial funding from the Portuguese research Grants PEst-OE/FIS/UI0068/2011 and PTDC/FIS-ATO/1832/2012 through FCT-MEC and from the Spanish Ministerio de Economia y Competitividad (Project No. FIS 2012-31230). S.E. acknowledges the financial support of the British EPSRC (CAF fellowship). P.L.V. acknowledges his visiting Professor position at The Open University, U.K. Some of this work forms part of the EU/ESF COST Actions Nano-IBCT-MP1002.",
year = "2014",
month = jan,
day = "30",
doi = "10.1021/jp407997w",
language = "English",
volume = "118",
pages = "690--696",
journal = "Journal Of Physical Chemistry A",
issn = "1089-5639",
publisher = "American Chemical Society",
number = "4",
}