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Valence-Shell Autoionization of NO



S H. Southworth, T A. Ferrett, Jonathan E. Hardis, Albert C. Parr, J L. Dehmer


Autoionization of valence and Rydberg states in NO over the 12.5-18 eV photon energy range was studied by vibrationally resolved photoelectron spectroscopy of the 2π orbital. Complex, oscillatory structure is observed in NO+ (2Π-1) X1ς+ partial cross sections, branching ratios, and photoelectron and anisotropy parameters due to autoionizing valence states and Rydberg states associated with the 1Π-1 and 5ς-1 channels. Autoionization of the 5ς->npΠς(upsilon'}=0), n=3-5 Rydberg states leading to the (5ς1) b3II state of NO+ produces very high vibrational levels of (2π-1) X1ς+. Autoionization of the 5ς-> 3pπ(upsilon'}=0) Rydberg state was characterized by resonance profiles of photoelectron cross sections and angular distributions.
Physics Essays
No. 2-3


asymmetry parameters, autoionization, branching ratios, photoelectron spectroscopy


Southworth, S. , Ferrett, T. , Hardis, J. , Parr, A. and Dehmer, J. (2000), Valence-Shell Autoionization of NO, Physics Essays, [online], (Accessed June 13, 2024)


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Created May 31, 2000, Updated October 12, 2021