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Title: Communication: State mixing by spin-orbit coupling in the anionic chloroiodine dissociations

Abstract

Three spin-orbit states, 1{sup 2}Π{sub 1/2}, 2{sup 2}Π{sub 3/2}, and 2{sup 2}Π{sub 1/2}, of chloroiodine anion (ICl{sup −}) formed by low-energy electron attachment in the Franck-Condon region are associated with the dissociative limits of I{sup −} ({sup 1}S{sub 0}) and Cl ({sup 2}P{sub 3/2}) or Cl{sup *} ({sup 2}P{sub 1/2}) fragments. Within the adiabatic scheme, the presumptive Π-symmetry of the fragment angular distributions is dramatically changed to be the Π-Σ mixing symmetry, due to the significant spin-orbit interaction effect on the electronic state couplings of ICl{sup −}. The present experimental approach also enables us to separate the contributions of different electronic states from the mixed states, providing a crucial method for quantitatively evaluating the configuration-interaction wavefunctions.

Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
22255216
Resource Type:
Journal Article
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 140; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR DISTRIBUTION; ANIONS; CHLORINE IONS; COUPLINGS; DISSOCIATION; ELECTRON ATTACHMENT; L-S COUPLING; MIXED STATE; MIXED STATES; MIXING; WAVE FUNCTIONS

Citation Formats

Xia, L., Wang, X. -D., Xuan, C. -J., Zeng, X. -J., Li, H. -K., Tian, S. X., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk, Pan, Y., and Lau, K.-C., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk. Communication: State mixing by spin-orbit coupling in the anionic chloroiodine dissociations. United States: N. p., 2014. Web. doi:10.1063/1.4862684.
Xia, L., Wang, X. -D., Xuan, C. -J., Zeng, X. -J., Li, H. -K., Tian, S. X., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk, Pan, Y., & Lau, K.-C., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk. Communication: State mixing by spin-orbit coupling in the anionic chloroiodine dissociations. United States. https://doi.org/10.1063/1.4862684
Xia, L., Wang, X. -D., Xuan, C. -J., Zeng, X. -J., Li, H. -K., Tian, S. X., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk, Pan, Y., and Lau, K.-C., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk. 2014. "Communication: State mixing by spin-orbit coupling in the anionic chloroiodine dissociations". United States. https://doi.org/10.1063/1.4862684.
@article{osti_22255216,
title = {Communication: State mixing by spin-orbit coupling in the anionic chloroiodine dissociations},
author = {Xia, L. and Wang, X. -D. and Xuan, C. -J. and Zeng, X. -J. and Li, H. -K. and Tian, S. X., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk and Pan, Y. and Lau, K.-C., E-mail: sxtian@ustc.edu.cn, E-mail: kaichung@cityu.edu.hk},
abstractNote = {Three spin-orbit states, 1{sup 2}Π{sub 1/2}, 2{sup 2}Π{sub 3/2}, and 2{sup 2}Π{sub 1/2}, of chloroiodine anion (ICl{sup −}) formed by low-energy electron attachment in the Franck-Condon region are associated with the dissociative limits of I{sup −} ({sup 1}S{sub 0}) and Cl ({sup 2}P{sub 3/2}) or Cl{sup *} ({sup 2}P{sub 1/2}) fragments. Within the adiabatic scheme, the presumptive Π-symmetry of the fragment angular distributions is dramatically changed to be the Π-Σ mixing symmetry, due to the significant spin-orbit interaction effect on the electronic state couplings of ICl{sup −}. The present experimental approach also enables us to separate the contributions of different electronic states from the mixed states, providing a crucial method for quantitatively evaluating the configuration-interaction wavefunctions.},
doi = {10.1063/1.4862684},
url = {https://www.osti.gov/biblio/22255216}, journal = {Journal of Chemical Physics},
issn = {0021-9606},
number = 4,
volume = 140,
place = {United States},
year = {Tue Jan 28 00:00:00 EST 2014},
month = {Tue Jan 28 00:00:00 EST 2014}
}