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August 20, 2025JACS Au0 citationsOpen Access

Ionic Reactant Orientation Restricts Ion–Neutral Reactions at Low Temperatures

Ionic Reactant Orientation Inhibits Ion–Neutral Reactions at Low Temperatures

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Authors

YPYongxu PengJLJunlong LiZSZongao Song

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Overview

Investigation reveals that ionic reactant orientation constrains reactivity in ion neutral reactions, indicating implications for interstellar chemistry.

Key Points

  • Reactivity is significantly influenced by ionic reactant orientation, leading to lower reaction rates than expected.
  • The measured rate coefficient of approximately 5.4 × 10–11 cm3/s at 97 K challenges classical capture theory predictions.
  • Investigation utilized a linear quadrupole ion trap and high-resolution time-of-flight mass spectrometer to study reactions.
  • Findings highlight the importance of steric effects in improving the accuracy of capture models in interstellar chemistry.

Cite This Study

Peng et al. (2025) studied this question.

synapsesocial.com/papers/68af56f4ad7bf08b1eadce3ehttps://doi.org/10.1021/jacsau.5c00613
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