Vibrational spectra in the ground electronic states, of fluoro-, chloro-, bromo-, and iodobenzene cations and in the excited electronic states, of chloro- and bromobenzene cations have been measured by mass-analyzed threshold ionization (MATI) via one-photon excitation with vacuum ultraviolet light. The spectra consist mostly of strong 0–0 bands and fundamentals, overtones, and combinations of totally symmetric modes. In particular, the observed vibrational bands in the states have been assigned by referring to the assignments for the ionic ground states and those for the neutral molecules. From the MATI spectra, the ionization energies of fluoro-, chloro-, bromo-, and iodobenzene to the ionic ground states have been determined to be and respectively. The ionization energies to the states have also been determined to be and for chloro- and bromobenzene, respectively.
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15 June 2002
Research Article|
June 15 2002
Vibrational spectra of halobenzene cations in the ground and electronic states obtained by one-photon mass-analyzed threshold ionization spectrometry
Chan Ho Kwon;
Chan Ho Kwon
National Creative Research Initiative Center for Control of Reaction Dynamics and School of Chemistry, Seoul National University, Seoul 151-742, Korea
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Hong Lae Kim;
Hong Lae Kim
National Creative Research Initiative Center for Control of Reaction Dynamics and School of Chemistry, Seoul National University, Seoul 151-742, Korea
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Myung Soo Kim
Myung Soo Kim
National Creative Research Initiative Center for Control of Reaction Dynamics and School of Chemistry, Seoul National University, Seoul 151-742, Korea
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J. Chem. Phys. 116, 10361–10371 (2002)
Article history
Received:
February 05 2002
Accepted:
March 26 2002
Citation
Chan Ho Kwon, Hong Lae Kim, Myung Soo Kim; Vibrational spectra of halobenzene cations in the ground and electronic states obtained by one-photon mass-analyzed threshold ionization spectrometry. J. Chem. Phys. 15 June 2002; 116 (23): 10361–10371. https://doi.org/10.1063/1.1478695
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