Studies of anion solvation in polar aprotic solvents

W. Ronald Fawcett, Paula Brooksby, Dmytro Verbovy, I. Bakó, G. Pálinkás

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Infrared spectra for LiI solutions in acetonitrile (AcN) and dimethyl sulfoxide (DMSO) are presented and analyzed. It is shown that characteristic vector analysis provides an effective tool for determining the effect of the electrolyte on the spectral features. In the case of AcN, the iodide anion interacts with the methyl group of the solvent molecule, which is at the positive end of the molecular dipole. In the case of DMSO, the anion interacts with the sulphur atom in the molecule, which is easily available to a monoatomic anion such as iodide. However, the spectral features of DMSO are complex in the region of the SO stretch so that an unambiguous identification of the anion effects cannot be made without further experimental work with other electrolytes. In the case of AcN, the spectral data are compared with the results of quantum chemical calculations.

Original languageEnglish
Pages (from-to)171-178
Number of pages8
JournalJournal of Molecular Liquids
Volume118
Issue number1-3
DOIs
Publication statusPublished - Apr 15 2005

Fingerprint

Solvation
Anions
solvation
Dimethyl sulfoxide
Negative ions
Dimethyl Sulfoxide
Acetonitrile
anions
acetonitrile
Iodides
iodides
Electrolytes
electrolytes
vector analysis
Molecules
Sulfur
molecules
sulfur
infrared spectra
dipoles

Keywords

  • Anion
  • Aprotic
  • Solvation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

Studies of anion solvation in polar aprotic solvents. / Fawcett, W. Ronald; Brooksby, Paula; Verbovy, Dmytro; Bakó, I.; Pálinkás, G.

In: Journal of Molecular Liquids, Vol. 118, No. 1-3, 15.04.2005, p. 171-178.

Research output: Contribution to journalArticle

Fawcett, W. Ronald ; Brooksby, Paula ; Verbovy, Dmytro ; Bakó, I. ; Pálinkás, G. / Studies of anion solvation in polar aprotic solvents. In: Journal of Molecular Liquids. 2005 ; Vol. 118, No. 1-3. pp. 171-178.
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