A Vibrational Spectroscopic Study of Ion Solvation and Association in Lithium Perchlorate/γ-Butyrolactone Electrolyte
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Jianji Wang
The Raman and infrared (IR) spectra of γ-butyrolactone (BL) containing various concentrations of LiClO4 have been measured and analyzed for the first time. It is found that both the vibrational frequencies and relative intensities of several BL bands change with increasing LiClO4 concentrations. The band splittings of the C-C stretch at 678 cm-1 (both in Raman and IR) and of the C=O stretch at 1772 cm-1 (in IR) show that there is a rather strong interaction between Li+ cation and BL molecule. This interaction occurs on the oxygen atom of the carbonyl of BL molecule. On the other hand, spectral curve fitting within the perchlorate band shape shows contributions of free ions and solvent separated ion pairs. Ion pairs as deduced by spectroscopic techniques provide a rational account for conductivity and viscosity of the electrolyte systems.
Artikel in diesem Heft
- A Vibrational Spectroscopic Study of Ion Solvation and Association in Lithium Perchlorate/γ-Butyrolactone Electrolyte
- NMR Study of Self-Association of Acetanilide in Chloroform, Acetone, Acetonitrile and Dimethyl Sulphoxide
- Reaction Paths in Concurrence: The Electrochemical Hydrogen Reaction on GaAs(111)A- and GaAs(110)-Surfaces A Quantumchemical Approach
- Structure, Diffusivity and Linear Rheology of Sodium Ether Dodecylsulfate in Aqueous Solutions – (I)
- Determination of Stoichiometric Dissociation Constants of Glycolic Acid in Dilute Aqueous Sodium or Potassium Chloride Solutions at 298.15 K
- Dissociation Constants of Substituted Aryl Azo Barbituric and Thiobarbituric Acids
Artikel in diesem Heft
- A Vibrational Spectroscopic Study of Ion Solvation and Association in Lithium Perchlorate/γ-Butyrolactone Electrolyte
- NMR Study of Self-Association of Acetanilide in Chloroform, Acetone, Acetonitrile and Dimethyl Sulphoxide
- Reaction Paths in Concurrence: The Electrochemical Hydrogen Reaction on GaAs(111)A- and GaAs(110)-Surfaces A Quantumchemical Approach
- Structure, Diffusivity and Linear Rheology of Sodium Ether Dodecylsulfate in Aqueous Solutions – (I)
- Determination of Stoichiometric Dissociation Constants of Glycolic Acid in Dilute Aqueous Sodium or Potassium Chloride Solutions at 298.15 K
- Dissociation Constants of Substituted Aryl Azo Barbituric and Thiobarbituric Acids
