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Rotationally resolved photoelectron spectroscopy of hot N_2 formed in the photofragmentation of N_2O

Rijs, Anouk M. and Backus, Ellen H. G. and de Lange, Cornelis A. and Janssen, Maurice H. M. and Wang, Kwanghsi and McKoy, Vincent (2001) Rotationally resolved photoelectron spectroscopy of hot N_2 formed in the photofragmentation of N_2O. Journal of Chemical Physics, 114 (21). pp. 9413-9420. ISSN 0021-9606. https://resolver.caltech.edu/CaltechAUTHORS:20151027-154129602

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Abstract

The photoionizationdynamics of rotationally hot molecular nitrogen are studied employing resonance enhanced multiphoton ionization in combination with photoelectron spectroscopy.Photodissociation of N_2O at ∼203 nm results in highly rotationally excited N2 fragments in X ^1∑^+_g (N″,v″=0,1) states and O atoms in the excited ^1D_2 state. Photoelectron detection of the rotationally hot N_2 states is performed by a two-photon excitation to the lowest a″ ^1∑^+_g Rydberg state followed by one-photon ionization. The large number of observed rotational levels, from N′=49 up to N′=94, results in improved rotational parameters for a″ ^1∑^+_g (v′=0). In addition, experimental and theoretical rotationally resolved photoelectron spectra of the a″ ^1∑^+_g (v′=0,1;N′) state are presented. In these spectra only ΔN = N^+ − N′ = even transitions are observed, with a dominant ΔN=0 peak and rather weak ΔN = ±2 peaks. The one-photon ionization is dominated by ejection of electrons in p and f partial waves. The agreement between experimental and calculated spectra is excellent.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.1370078DOIArticle
http://scitation.aip.org/content/aip/journal/jcp/114/21/10.1063/1.1370078PublisherArticle
Alternate Title:Rotationally resolved photoelectron spectroscopy of hot N2 formed in the photofragmentation of N2O
Additional Information:© 2001 American Institute of Physics. (Received 13 February 2001; accepted 14 March 2001) A.M.R. acknowledges the Holland Research School of Molecular Chemistry for a Ph.D. fellowship. The authors thank Ing. D. Bebelaar for technical support. Work at the California Institute of Technology was supported by a grant from the National Science Foundation (U.S.).
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Holland Research School of Molecular ChemistryUNSPECIFIED
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Issue or Number:21
Record Number:CaltechAUTHORS:20151027-154129602
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151027-154129602
Official Citation: Rotationally resolved photoelectron spectroscopy of hot N2 formed in the photofragmentation of N2O Anouk M. Rijs, Ellen H. G. Backus, Cornelis A. de Lange, Maurice H. M. Janssen, Kwanghsi Wang and Vincent McKoy J. Chem. Phys. 114, 9413 (2001); http://dx.doi.org/10.1063/1.1370078
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61608
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:28 Oct 2015 15:35
Last Modified:03 Oct 2019 09:09

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