Photodissociation of ICI at 235-248 nm

Kenichi Tonokura; Yutaka Matsumi; Masahiro Kawasaki; Hong Lae Kim; Satoshi Yabushita; Shikao Fujimura; Ko Saito

doi:10.1063/1.466169

Photodissociation of ICI at 235-248 nm

Kenichi Tonokura, Yutaka Matsumi, Masahiro Kawasaki, Hong Lae Kim, Satoshi Yabushita, Shikao Fujimura, Ko Saito

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

Photodissociation of iodine monochloride has been investigated at 235-248 nm by studying Doppler profiles of (2+1) resonance enhanced multiphoton ionization spectra of fragment chlorine atoms and two-photon laser induced fluorescence spectra of iodine atoms. At 235.3-237.8 nm, a measured branching ratio of [Cl*(²P_1/2)]/[Cl(²P _3/2)] is 0.68±0.10. At 248 nm, the [I*( ²P_1/2)]/[I(²P_3/2)] ratio is 0.71±0.27. From the measured Doppler profiles and the ab initio calculation, the photoprepared states leading to Cl and Cl* production are assigned to the ³Π₀₊ (and possibly ³Σ₀₊^-) and the ¹Π ₁ states, respectively. Nonadiabatic couplings between the potential curves have been discussed.

Original language	English
Pages (from-to)	3461-3467
Number of pages	7
Journal	The Journal of Chemical Physics
Volume	99
Issue number	5
DOIs	https://doi.org/10.1063/1.466169
Publication status	Published - 1993

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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title = "Photodissociation of ICI at 235-248 nm",

abstract = "Photodissociation of iodine monochloride has been investigated at 235-248 nm by studying Doppler profiles of (2+1) resonance enhanced multiphoton ionization spectra of fragment chlorine atoms and two-photon laser induced fluorescence spectra of iodine atoms. At 235.3-237.8 nm, a measured branching ratio of [Cl*(2P1/2)]/[Cl(2P 3/2)] is 0.68±0.10. At 248 nm, the [I*( 2P1/2)]/[I(2P3/2)] ratio is 0.71±0.27. From the measured Doppler profiles and the ab initio calculation, the photoprepared states leading to Cl and Cl* production are assigned to the 3Π0+ (and possibly 3Σ0+-) and the 1Π 1 states, respectively. Nonadiabatic couplings between the potential curves have been discussed.",

author = "Kenichi Tonokura and Yutaka Matsumi and Masahiro Kawasaki and Kim, {Hong Lae} and Satoshi Yabushita and Shikao Fujimura and Ko Saito",

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T1 - Photodissociation of ICI at 235-248 nm

AU - Tonokura, Kenichi

AU - Matsumi, Yutaka

AU - Kawasaki, Masahiro

AU - Kim, Hong Lae

AU - Yabushita, Satoshi

AU - Fujimura, Shikao

AU - Saito, Ko

PY - 1993

Y1 - 1993

N2 - Photodissociation of iodine monochloride has been investigated at 235-248 nm by studying Doppler profiles of (2+1) resonance enhanced multiphoton ionization spectra of fragment chlorine atoms and two-photon laser induced fluorescence spectra of iodine atoms. At 235.3-237.8 nm, a measured branching ratio of [Cl*(2P1/2)]/[Cl(2P 3/2)] is 0.68±0.10. At 248 nm, the [I*( 2P1/2)]/[I(2P3/2)] ratio is 0.71±0.27. From the measured Doppler profiles and the ab initio calculation, the photoprepared states leading to Cl and Cl* production are assigned to the 3Π0+ (and possibly 3Σ0+-) and the 1Π 1 states, respectively. Nonadiabatic couplings between the potential curves have been discussed.

AB - Photodissociation of iodine monochloride has been investigated at 235-248 nm by studying Doppler profiles of (2+1) resonance enhanced multiphoton ionization spectra of fragment chlorine atoms and two-photon laser induced fluorescence spectra of iodine atoms. At 235.3-237.8 nm, a measured branching ratio of [Cl*(2P1/2)]/[Cl(2P 3/2)] is 0.68±0.10. At 248 nm, the [I*( 2P1/2)]/[I(2P3/2)] ratio is 0.71±0.27. From the measured Doppler profiles and the ab initio calculation, the photoprepared states leading to Cl and Cl* production are assigned to the 3Π0+ (and possibly 3Σ0+-) and the 1Π 1 states, respectively. Nonadiabatic couplings between the potential curves have been discussed.

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