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Title:Rotationally-resolved High-resolution Laser Spectroscopy Of The B 2e′← X 2a2′ Transition Of 15no3 Radical
Author(s):Tada, Kohei
Contributor(s):Hirota, Eizi; Ishiwata, Takashi; Kasahara, Shunji
Abstract:Nitrate radical (NO$_{3}$) has two electronic excited states: $A~^{2}E"$ and $B~^{2}E'$ near the electronic ground state: $X~^{2}A_{2}'$. These three electronic states can vibronically interact each other. Therefore, NO$_{3}$ is one of the great subjects for understanding intramolecular interactions in polyatomic radicals. High-resolution fluorescence excitation spectrum and its magnetic effect of the 662 nm band, which is assigned as the 0 - 0 band of the $B~^{2}E' \leftarrow X~^{2}A_{2}'$ transition, of $^{14}$NO$_{3}$ have been observed.\footnote{K. Tada, W. Kashihara, S. Kasahara, M. Baba, T. Ishiwata, and E. Hirota, The 68th OSU Symposium, WJ04 (2013).} The observed $^{14}$NO$_{3}$ spectrum was too complicated to be analyzed rotationally because of less rotational regularity. In this work, we observed high-resolution fluorescence excitation spectrum of the 662 nm band of $^{15}$NO$_{3}$. The observed region was 15080 - 15103 cm$^{-1}$. We also observed the Zeeman splitting of intense rotational lines for unambiguous rotational assignment. A part of the observed rotational lines was successfully assigned by using ground state combination differences calculated from the reported molecular constants\footnote{R. Fujimori, N. Shimizu, J. Tang, T. Ishiwata, and K. Kawaguchi, J. Mol. Spectrosc., 283, 10 (2013).} and the observed Zeeman patterns. The effective molecular constants of the excited state were determined under the oblate symmetric-top model.
Issue Date:2014-06-16
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:Tada, K.; Hirota, E.; Ishiwata, T.; Kasahara, S. ROTATIONALLY-RESOLVED HIGH-RESOLUTION LASER SPECTROSCOPY OF THE B 2E′← X 2A2′ TRANSITION OF 15NO3 RADICAL. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.MI14
Rights Information:Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License.
Date Available in IDEALS:2014-09-17

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