Anionic and Cationic Photofragmentation of Core-Excited N2O

Document Type



We have measured all detectable cationic and anionic fragments in single-channel mode from N2O as a function of photon energy in the vicinity of the nitrogen 1s core-level threshold. Due to the high degree of localization of the core electrons, the two excitations Nt1s → 3π* and Nc1s → 3π* show high levels of site-selective behaviour. The observed partial ion yield for the sole anionic fragment, O, in conjunction with the partial cation yields, confirms our previous demonstration of anion-yield spectroscopy as a unique tool to identify core-level shape resonances.


Analytical Chemistry | Atomic, Molecular and Optical Physics | Biological and Chemical Physics | Elementary Particles and Fields and String Theory | Physical Chemistry


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Publisher Citation

Yu, Sung W., Wayne C. Stolte, Gunnar Öhrwall, Renaud Guillemin, M. N. Piancastelli, and Dennis W. Lindle. "Anionic and cationic photofragmentation of core-excited N2O." Journal of Physics B: Atomic, Molecular and Optical Physics 36, no. 6 (2003): 1255.