The cavity ring-down absorption spectrum of the S0→T1 and S0→S1 transition of jet-cooled 4-H-1-benzopyrane-4-thione

A. A. Ruth; T. Fernholz; R. P. Brint; M. W.D. Mansfield

doi:10.1016/S0009-2614(98)00176-6

The cavity ring-down absorption spectrum of the S₀→T₁ and S₀→S₁ transition of jet-cooled 4-H-1-benzopyrane-4-thione

A. A. Ruth
, T. Fernholz
, R. P. Brint
, M. W.D. Mansfield

School of Physics

University College Cork

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

Abstract

The very sensitive cavity ring-down method has been applied to the measurement of the absorption of 4-H-1-benzopyrane-4-thione (BPT) in a supersonic jet in the wavelength region of the S₀→T₁ and S₀→S₁ transition between 15800 and 16650 cm^-1. The absorption energies of vibronic states corroborate previous assignments in the multi-photon excitation and S₀→T₁ phosphorescence excitation spectra of jet-cooled BPT. The symmetry forbidden 0,0 transition, S_0,0→S_1,0 at 16522 cm^-1, was found to be 7.5 times weaker than the absorption transition to the triplet origin, S_0,0→T_1z,0.

Original language	English
Pages (from-to)	403-411
Number of pages	9
Journal	Chemical Physics Letters
Volume	287
Issue number	3-4
DOIs	https://doi.org/10.1016/S0009-2614(98)00176-6
Publication status	Published - 1 May 1998

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title = "The cavity ring-down absorption spectrum of the S0→T1 and S0→S1 transition of jet-cooled 4-H-1-benzopyrane-4-thione",

abstract = "The very sensitive cavity ring-down method has been applied to the measurement of the absorption of 4-H-1-benzopyrane-4-thione (BPT) in a supersonic jet in the wavelength region of the S0→T1 and S0→S1 transition between 15800 and 16650 cm-1. The absorption energies of vibronic states corroborate previous assignments in the multi-photon excitation and S0→T1 phosphorescence excitation spectra of jet-cooled BPT. The symmetry forbidden 0,0 transition, S0,0→S1,0 at 16522 cm-1, was found to be 7.5 times weaker than the absorption transition to the triplet origin, S0,0→T1z,0.",

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T1 - The cavity ring-down absorption spectrum of the S0→T1 and S0→S1 transition of jet-cooled 4-H-1-benzopyrane-4-thione

AU - Ruth, A. A.

AU - Fernholz, T.

AU - Brint, R. P.

AU - Mansfield, M. W.D.

PY - 1998/5/1

Y1 - 1998/5/1

N2 - The very sensitive cavity ring-down method has been applied to the measurement of the absorption of 4-H-1-benzopyrane-4-thione (BPT) in a supersonic jet in the wavelength region of the S0→T1 and S0→S1 transition between 15800 and 16650 cm-1. The absorption energies of vibronic states corroborate previous assignments in the multi-photon excitation and S0→T1 phosphorescence excitation spectra of jet-cooled BPT. The symmetry forbidden 0,0 transition, S0,0→S1,0 at 16522 cm-1, was found to be 7.5 times weaker than the absorption transition to the triplet origin, S0,0→T1z,0.

AB - The very sensitive cavity ring-down method has been applied to the measurement of the absorption of 4-H-1-benzopyrane-4-thione (BPT) in a supersonic jet in the wavelength region of the S0→T1 and S0→S1 transition between 15800 and 16650 cm-1. The absorption energies of vibronic states corroborate previous assignments in the multi-photon excitation and S0→T1 phosphorescence excitation spectra of jet-cooled BPT. The symmetry forbidden 0,0 transition, S0,0→S1,0 at 16522 cm-1, was found to be 7.5 times weaker than the absorption transition to the triplet origin, S0,0→T1z,0.

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SN - 0009-2614

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JO - Chemical Physics Letters

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IS - 3-4

ER -

The cavity ring-down absorption spectrum of the S₀→T₁ and S₀→S₁ transition of jet-cooled 4-H-1-benzopyrane-4-thione

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