Photodissociation dynamics of CF3Br at 225 nm: Direct dissociation via pseudo-linear geometry

Tae Kyu Kim; Keon Woo Lee; Kyoung Seok Lee; Eok Kyun Lee; Kyung Hoon Jung

doi:10.1016/j.cplett.2007.08.044

Photodissociation dynamics of CF₃Br at 225 nm: Direct dissociation via pseudo-linear geometry

Tae Kyu Kim, Keon Woo Lee, Kyoung Seok Lee, Eok Kyun Lee, Kyung Hoon Jung

Department of Chemistry

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

12 Citations (Scopus)

Abstract

Photodissociation dynamics of CF₃Br has been investigated at 225 nm, where the ³Q₀ state is accessed exclusively. It has been revealed that the ground state Br(²P_3/2) is hardly formed with a relative quantum yield less than 5%. The recoil anisotropy of Br^*(²P_1/2) has been found to have a limiting value, β_Br* = 1.90 ± 0.05. The total translational energy distribution for the Br^* channel was well fitted by a Gaussian function with an average of 155 kJ/mol and a width of 30 kJ/mol. It has been proposed that the ³Q₀ state is not bent and the dissociation on this surface proceeds in a collinear geometry.

Original language	English
Pages (from-to)	31-35
Number of pages	5
Journal	Chemical Physics Letters
Volume	446
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2007.08.044
Publication status	Published - 2007 Sept 26

Bibliographical note

Funding Information:
The authors gratefully acknowledge support from School of Molecular Science through the Brain Korea 21 project.

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Access to Document

10.1016/j.cplett.2007.08.044

Cite this

@article{a81a8d076f1f41a5a60dcc4265f85a65,

title = "Photodissociation dynamics of CF3Br at 225 nm: Direct dissociation via pseudo-linear geometry",

abstract = "Photodissociation dynamics of CF3Br has been investigated at 225 nm, where the 3Q0 state is accessed exclusively. It has been revealed that the ground state Br(2P3/2) is hardly formed with a relative quantum yield less than 5%. The recoil anisotropy of Br*(2P1/2) has been found to have a limiting value, βBr* = 1.90 ± 0.05. The total translational energy distribution for the Br* channel was well fitted by a Gaussian function with an average of 155 kJ/mol and a width of 30 kJ/mol. It has been proposed that the 3Q0 state is not bent and the dissociation on this surface proceeds in a collinear geometry.",

author = "Kim, {Tae Kyu} and Lee, {Keon Woo} and Lee, {Kyoung Seok} and Lee, {Eok Kyun} and Jung, {Kyung Hoon}",

note = "Funding Information: The authors gratefully acknowledge support from School of Molecular Science through the Brain Korea 21 project.",

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T1 - Photodissociation dynamics of CF3Br at 225 nm

T2 - Direct dissociation via pseudo-linear geometry

AU - Kim, Tae Kyu

AU - Lee, Keon Woo

AU - Lee, Kyoung Seok

AU - Lee, Eok Kyun

AU - Jung, Kyung Hoon

N1 - Funding Information: The authors gratefully acknowledge support from School of Molecular Science through the Brain Korea 21 project.

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AB - Photodissociation dynamics of CF3Br has been investigated at 225 nm, where the 3Q0 state is accessed exclusively. It has been revealed that the ground state Br(2P3/2) is hardly formed with a relative quantum yield less than 5%. The recoil anisotropy of Br*(2P1/2) has been found to have a limiting value, βBr* = 1.90 ± 0.05. The total translational energy distribution for the Br* channel was well fitted by a Gaussian function with an average of 155 kJ/mol and a width of 30 kJ/mol. It has been proposed that the 3Q0 state is not bent and the dissociation on this surface proceeds in a collinear geometry.

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