Spectroscopy and photodissociation of ClF in rare gas solids

被引：13

作者：

Bargheer, M ^{[1
]}

Dietrich, P ^{[1
]}

Schwentner, N ^{[1
]}

机构：

[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2001年 / 115卷 / 01期

关键词：

D O I：

10.1063/1.1377601

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Vibrational progressions in the A'-->X(v") fluorescence of ClF in Ar and Kr matrices with 1 <v"<9 are observed in the spectral range from 600 to 900 nm with lifetimes of 141 ms. Two-photon excitation leads to emission from the ionic D' state to the A', 2 (3)Pi (2), and 2 (3)Delta (2) valence states in the range from 390 to 470 nm with 50 ns lifetime. Ground state parameters omega (e) and omega (e)x(e) as well as T-e values for the A(') and D-' states are derived. Matrix and Stokes shifts are observed and the large linewidth of the D-' emission is related to the strong coupling of the ionic state to the lattice. Dissociation quantum efficiencies of 5% and 4.8% are determined for kinetic energies of the F fragment of 0.92 eV and 0.39 eV in Ar (19 K), respectively. (C) 2001 American Institute of Physics.

引用

页码：149 / 157

页数：9

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