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Abstract <p>Examples of the so-called noncovalent structures of anions are reviewed. Their geometry differs significantly from the geometry of the original molecules; in particular, the lengths of carbon–halogen bonds are ∼2.7–3 Å, and the halogen atom itself can circle the hydrocarbon skeleton of the anion (the so-called roaming). Such noncovalent structures can have a significantly higher electron affinity than the original molecules.</p>

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Noncovalent Structures of Negative Ions in Dissociative Electron Capture Spectra

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • N. L. Asfandiarov,
  • M. V. Muftakhov,
  • R. G. Rakhmeyev,
  • S. A. Pshenichnyuk

摘要

Abstract

Examples of the so-called noncovalent structures of anions are reviewed. Their geometry differs significantly from the geometry of the original molecules; in particular, the lengths of carbon–halogen bonds are ∼2.7–3 Å, and the halogen atom itself can circle the hydrocarbon skeleton of the anion (the so-called roaming). Such noncovalent structures can have a significantly higher electron affinity than the original molecules.