@article{a32e1c425e974d549a7966de29192dbe,
title = "Multi-photon and electron impact ionisation studies of reactivity in adenine-water clusters",
abstract = "Multi-photon ionisation (MPI) and electron impact ionisation (EII) mass spectrometry experiments have been carried out to probe unimolecular and intermolecular reactivities in hydrated adenine clusters. The effects of clustering with water on fragment ion production from adenine have been studied for the first time. While the observation of NH4+ fragments indicated the dissociation of protonated adenine, the dominant hydration effects were enhanced C4H4N4 + production and the suppression of dissociative ionisation pathways with high activation energies. These observations can be attributed to energy removal from the excited adenine radical cation via cluster dissociation. Comparisons of MPI and EII measurements provided the first experimental evidence supporting hypoxanthine formation in adenine-water clusters via theoretically predicted barrierless deamination reactions in closed shell complexes.",
keywords = "Adenine, Cluster, Dissociative ionisation, Electron impact ionisation, Hypoxanthine, Multi-photon ionisation",
author = "B. Barc and M. Ryszka and Poully, {J. C.} and {Jabbour Al Maalouf}, E. and {El Otell}, Z. and J. Tabet and R. Parajuli and {Van Der Burgt}, {P. J. M.} and P. Lim{\~a}o-Vieira and P. Cahillane and M. Dampc and Mason, {N. J.} and S. Eden",
note = "The authors are grateful for the expert technical support provided by F. Roberston, R. Bence, M. Percy, and C. Hall at the OU. S.E. and P.L.V. acknowledge the support from the British Council for the collaboration between the OU and the Universidade Nova de Lisboa. P.L.V. acknowledges his visiting Professor position at the OU and support from the Portuguese research grants PEst-OE/FIS/UI0068/2011 and PTDC/FIS-ATO/1832/2012 through FCT-MEC. S.E. acknowledges the support of the British EPSRC through a Life Sciences Interface Fellowship (EP/E039618/1), a Career Acceleration Fellowship (EP/J002577/1), and a Research Grant (EP/L002191/1). The European Commission is acknowledged for a Marie Curie Intra-European Reintegration Grant (MERG-CT-2007-207292). S.E., J.-C.P. and P.v.d.B acknowledge two Short Scientific Missions (GANIL-OU and Maynooth-OU) funded by the EU/ESF COST Action Nano-IBCT-MP1002. R.P. acknowledges his visiting research fellowship at the OU.",
year = "2014",
month = may,
day = "15",
doi = "10.1016/j.ijms.2014.01.007",
language = "English",
volume = "365-366",
pages = "194--199",
journal = "International Journal of Mass Spectrometry",
issn = "1387-3806",
publisher = "Elsevier Science B.V., Amsterdam.",
number = "SI",
}