A mass spectrometric study of solvated clusters of ions and ion pairs generated from lithium halide solutions in polar solvents: Acetonitrile compared to methanol

Tünde Megyes, Tamás Radnai, Akihiro Wakisaka

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Mass spectrometric study on cluster structure of solutions of lithium halides (LiX = LiBr and LiI) in acetonitrile is reported. Solvated ions Li+(CH3CN)n, X-(CH3CN)n, and salt clusters Li+(LiX)m(CH3CN)n and X-(LiX)m(CH3CN)n, were observed in the spectra. The mechanism of cluster formation is discussed in terms of a competition between solvation interactions and electrostatic interactions. This helps to explain the differences between clustering in methanol and acetonitrile, since the latter one has much larger dipole moment than the former one. Therefore appearance of solvated clusters, including the solvated salt clusters, is more favourable in methanol solutions' spectra.

Original languageEnglish
Pages (from-to)319-329
Number of pages11
JournalJournal of Molecular Liquids
Issue numberSPEC.
Publication statusPublished - Mar 1 2003


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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