Complementary relation between ion-counterion and ion-solvent interaction in lithium halide-methanol solutions

T. Megyes, T. Radnái, Akihiro Wakisaka

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Mass spectrometric study on the cluster structure of methanol solutions containing lithium halides (LiX = LiCl, LiBr, and LiI) is reported. Solvated ions: Li+(CH3OH)n and X-(CH3OH)k, and salt clusters: Li+(Li+X-)s(CH3OH)m and X-(Li+X-)p(CH3OH)r , were observed in the mass spectra. The number of methanol molecules around Li+, especially in Li+(Li+X-)s(CH3OH)m clusters, increased when changing the anions from Cl- to I-, which suggested that there was a complementary relation between a Li+-CH3OH interaction and a Li+-X- interaction. In the case of X- = I-, the Li+-CH3OH interaction was enhanced in comparing with the case of X- = Cl-, because a Li+-I- interaction is weaker than a Li+-Cl- interaction. This observed complementary relation is a kind of intrinsic property of a liquid phase. Furthermore, mass distribution of the solvated ions and the salt clusters had correlations with physicochemical properties such as solvation energies and molar conductivities.

Original languageEnglish
Pages (from-to)8059-8065
Number of pages7
JournalJournal of Physical Chemistry A
Volume106
Issue number35
DOIs
Publication statusPublished - Sep 5 2002

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Lithium
halides
Methanol
methyl alcohol
Salts
lithium
Ions
Solvation
Anions
ions
interactions
salts
Molecules
Liquids
mass distribution
mass spectra
solvation
liquid phases
anions
conductivity

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Complementary relation between ion-counterion and ion-solvent interaction in lithium halide-methanol solutions. / Megyes, T.; Radnái, T.; Wakisaka, Akihiro.

In: Journal of Physical Chemistry A, Vol. 106, No. 35, 05.09.2002, p. 8059-8065.

Research output: Contribution to journalArticle

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AB - Mass spectrometric study on the cluster structure of methanol solutions containing lithium halides (LiX = LiCl, LiBr, and LiI) is reported. Solvated ions: Li+(CH3OH)n and X-(CH3OH)k, and salt clusters: Li+(Li+X-)s(CH3OH)m and X-(Li+X-)p(CH3OH)r , were observed in the mass spectra. The number of methanol molecules around Li+, especially in Li+(Li+X-)s(CH3OH)m clusters, increased when changing the anions from Cl- to I-, which suggested that there was a complementary relation between a Li+-CH3OH interaction and a Li+-X- interaction. In the case of X- = I-, the Li+-CH3OH interaction was enhanced in comparing with the case of X- = Cl-, because a Li+-I- interaction is weaker than a Li+-Cl- interaction. This observed complementary relation is a kind of intrinsic property of a liquid phase. Furthermore, mass distribution of the solvated ions and the salt clusters had correlations with physicochemical properties such as solvation energies and molar conductivities.

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