Exploration of Cold Ion Chemistry Using Ion Coulomb Crystals

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  • イオンのクーロン結晶が拓く星間分子生成反応の研究
  • イオン ノ クーロン ケッショウ ガ ヒラク ホシ カン ブンシ セイセイ ハンノウ ノ ケンキュウ

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Abstract

<p>We have developed a new ion-trap apparatus combined with a Stark-velocity filter in order to measure reaction-rate constants between cold trapped ions and slow polar molecules under ultra-high vacuum conditions. The reaction-rate constant of CH3CN+N2H+→CH3CNH++N2 was measured at translational temperatures lower than 10 K. The measured reaction-rate constant is consistent with the capture rates by the classical model and the formula derived by trajectory simulations. The present experimental technique will explore the quantum effects in cold ion-polar molecule reactions which are important problems from a fundamental view point, and also contribute to astrochemistry by the systematic measurement.</p>

Journal

  • Butsuri

    Butsuri 71 (10), 695-700, 2016

    The Physical Society of Japan

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