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

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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 Jan 1
Externally published	Yes

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ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Cite this

Tonokura, K., Matsumi, Y., Kawasaki, M., Kim, H. L., Yabushita, S., Fujimura, S., & Saito, K. (1993). Photodissociation of ICI at 235-248 nm. The Journal of Chemical Physics, 99(5), 3461-3467. https://doi.org/10.1063/1.466169

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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.",

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AU - Tonokura, Kenichi

AU - Matsumi, Yutaka

AU - Kawasaki, Masahiro

AU - Kim, Hong Lae

AU - Yabushita, Satoshi

AU - Fujimura, Shikao

AU - Saito, Ko

PY - 1993/1/1

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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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10.1063/1.466169