The Quenching of Hg(63<i>P</i>1) Atoms by Molecular Hydrogen as Investigated by ESR Spectroscopy

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<jats:title>Abstract</jats:title> <jats:p>The gas phase electron spin resonance technique has been applied to study the quenching efficiency of Hg(63P1) mercury atoms by molecular hydrogen. The concentration of hydrogen atoms produced by the mercury photosensitized decomposition of molecular hydrogen in a flow apparatus was followed as a function of the partial pressure of hydrogen with argon, neon, and hydrogen as carrier gases. The kinetic equations derived from the reaction mechanism proposed was shown to be in agreement with the experimental observations. The total quenching rate kH was evaluated from the experimental results.</jats:p>

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