State-dependent fragmentation of protonated uracil and uridine. Issue 21 (January 2020)

• Record Type: Journal Article
• Authors: Pitzer, M; Ozga, Ch; Küstner-Wetekam, C; Reiß, Ph; Knie, A; Ehresmann, A; Jahnke, T; Giuliani, A; Nahon, L
• Is Part Of: Journal of physics. Volume 1412:Issue 21(2019)
• Publication Date: 2020-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1412/21/212010
• Languages: English
• ISSNs: 1742-6588

Abstract

Synopsis: Protonated uracil (m/z 113) and uridine (m/z 245) were exposed to synchrotron radiation in the photon energy range of 4.5 to 9 eV. The yield of various fragments as a function of photon energy shows maxima that can be attributed to excited electronic states and compared to calculated vertical excitation energies. For the nucleoside uridine, much less fragments were observed, indicating a stabilization of the nucleobase through the attached sugar molecule.