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

Research output: Contribution to journalArticle

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(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.

Original languageEnglish
Pages (from-to)31-35
Number of pages5
JournalChemical Physics Letters
Volume446
Issue number1-3
DOIs
Publication statusPublished - 2007 Sep 26

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Photodissociation
Quantum yield
photodissociation
Ground state
energy distribution
Anisotropy
dissociation
anisotropy
ground state
Geometry
geometry
bromotrifluoromethane

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Kim, Tae Kyu ; Lee, Keon Woo ; Lee, Kyoung Seok ; Lee, Eok Kyun ; Jung, Kyung Hoon. / Photodissociation dynamics of CF3Br at 225 nm : Direct dissociation via pseudo-linear geometry. In: Chemical Physics Letters. 2007 ; Vol. 446, No. 1-3. pp. 31-35.
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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.",
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Photodissociation dynamics of CF3Br at 225 nm : Direct dissociation via pseudo-linear geometry. / Kim, Tae Kyu; Lee, Keon Woo; Lee, Kyoung Seok; Lee, Eok Kyun; Jung, Kyung Hoon.

In: Chemical Physics Letters, Vol. 446, No. 1-3, 26.09.2007, p. 31-35.

Research output: Contribution to journalArticle

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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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