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Title: Vibrational Autoionization in Rydberg States of Ammonia

Abstract

Rotationally resolved photoelectron spectroscopy is used to elucidate the mechanism for vibrational autoionization via the nontotally symmetric umbrella vibration of ammonia (NH{sub 3} ). This mechanism depends strongly on the character of the autoionizing level, and the data demonstrate that both the electronic and rotational degrees of freedom can compensate for the change in vibrational symmetry that occurs for odd changes in the quantum number of the umbrella vibration. This result has implications for models of the mode dependence of vibrational autoionization in polyatomic molecules. (c) 2000 The American Physical Society.

Authors:
;
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
20216613
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 22; Other Information: PBD: 29 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; AMMONIA; RYDBERG STATES; AUTOIONIZATION; PHOTOELECTRON SPECTROSCOPY; VIBRATIONAL STATES; QUANTUM NUMBERS; EXPERIMENTAL DATA

Citation Formats

Raptis, C. A., and Pratt, S. T. Vibrational Autoionization in Rydberg States of Ammonia. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.5078.
Raptis, C. A., & Pratt, S. T. Vibrational Autoionization in Rydberg States of Ammonia. United States. doi:10.1103/PhysRevLett.84.5078.
Raptis, C. A., and Pratt, S. T. Mon . "Vibrational Autoionization in Rydberg States of Ammonia". United States. doi:10.1103/PhysRevLett.84.5078.
@article{osti_20216613,
title = {Vibrational Autoionization in Rydberg States of Ammonia},
author = {Raptis, C. A. and Pratt, S. T.},
abstractNote = {Rotationally resolved photoelectron spectroscopy is used to elucidate the mechanism for vibrational autoionization via the nontotally symmetric umbrella vibration of ammonia (NH{sub 3} ). This mechanism depends strongly on the character of the autoionizing level, and the data demonstrate that both the electronic and rotational degrees of freedom can compensate for the change in vibrational symmetry that occurs for odd changes in the quantum number of the umbrella vibration. This result has implications for models of the mode dependence of vibrational autoionization in polyatomic molecules. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.5078},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 22,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}