Vibrationally unrelaxed fluorescence in matrix isolated CF2

V. E. Bondybey

doi:10.1016/0022-2852(76)90002-3

Vibrationally unrelaxed fluorescence in matrix isolated CF₂

V. E. Bondybey

Alcatel-Lucent

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

37 Scopus citations

Abstract

The CF₂ emission spectrum in rare gas solids involves both the symmetric vibrations, ν₂ (668 cm^-1) and ν₁ (1120 cm^-1). A vibrationally unrelaxed emission is observed following selective excitation of the higher vibrational levels in the ν₂ manifold, and we measure vibrational relaxation rates of 2 × 10⁸/sec and 1.1 × 10⁸/sec, respectively, for the 2-1 and 1-0 relaxation in argon. All the vibrational bands show a strong coupling to the lattice modes, with a weak ZPL and strong phonon wing. This results from the change in geometry between the ground and excited electronic states.

Original language	English
Pages (from-to)	164-169
Number of pages	6
Journal	Journal of Molecular Spectroscopy
Volume	63
Issue number	2
DOIs	https://doi.org/10.1016/0022-2852(76)90002-3
State	Published - Nov 1976
Externally published	Yes

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title = "Vibrationally unrelaxed fluorescence in matrix isolated CF2",

abstract = "The CF2 emission spectrum in rare gas solids involves both the symmetric vibrations, ν2 (668 cm-1) and ν1 (1120 cm-1). A vibrationally unrelaxed emission is observed following selective excitation of the higher vibrational levels in the ν2 manifold, and we measure vibrational relaxation rates of 2 × 108/sec and 1.1 × 108/sec, respectively, for the 2-1 and 1-0 relaxation in argon. All the vibrational bands show a strong coupling to the lattice modes, with a weak ZPL and strong phonon wing. This results from the change in geometry between the ground and excited electronic states.",

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N2 - The CF2 emission spectrum in rare gas solids involves both the symmetric vibrations, ν2 (668 cm-1) and ν1 (1120 cm-1). A vibrationally unrelaxed emission is observed following selective excitation of the higher vibrational levels in the ν2 manifold, and we measure vibrational relaxation rates of 2 × 108/sec and 1.1 × 108/sec, respectively, for the 2-1 and 1-0 relaxation in argon. All the vibrational bands show a strong coupling to the lattice modes, with a weak ZPL and strong phonon wing. This results from the change in geometry between the ground and excited electronic states.

AB - The CF2 emission spectrum in rare gas solids involves both the symmetric vibrations, ν2 (668 cm-1) and ν1 (1120 cm-1). A vibrationally unrelaxed emission is observed following selective excitation of the higher vibrational levels in the ν2 manifold, and we measure vibrational relaxation rates of 2 × 108/sec and 1.1 × 108/sec, respectively, for the 2-1 and 1-0 relaxation in argon. All the vibrational bands show a strong coupling to the lattice modes, with a weak ZPL and strong phonon wing. This results from the change in geometry between the ground and excited electronic states.

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ER -

Vibrationally unrelaxed fluorescence in matrix isolated CF₂

Abstract

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