LINE-WIDTHS IN THE $B^{3}\Pi_{0}^{+}-X^{1}\Sigma^{+}$ SYSTEM OF IC1

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1974

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Ohio State University

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Abstract

Lines in the (3,1) band of the $B^{3}\Pi_{0}^{+}$ - $X^{1}\Sigma^{+}$ system of IC1 have been recorded in absorption using a Fabry-Perot interferometer spectrometer. A striking increase in line-widths is observed for transitions ending on excited-state rotational levels above J^{\prime} = 37. Examination of the probable causes of the broadening in the spectrum points to shortened excited-state life-times and yields $3 \times 10^{-11}$ sec. for the life-time of $I^{35}$C1 in the $J^{\prime} = 41$ level. The predissociation responsible for this short life-time l be discussed.

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This work was supported by the National Science Foundation. Acknowledgement also is made to the donors of the Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research.
Author Institution: Department of Chemistry, State University of New York

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