Conductivity and Solvation of Li+ Ions of LiPF6 in Propylene Carbonate Solutions

Kazutaka Kondo, Mitsuru Sano, Akio Hiwara, Takehiko Omi, Miho Fujita, Akio Kuwae, Masayasu Iida, Koichi Mogi, Haruhiko Yokoyama

    Research output: Contribution to journalArticle

    124 Citations (Scopus)

    Abstract

    Solutions of lithium hexafluorophosphate, LiPF6, in propylene carbonate (4-methyl-1,3-dioxolan-2-one; denoted by PC hereafter) in the concentration range from 0.0 to 3.29 M (M = mol dm-3) have been studied regarding their conductivities, viscosities, and self-diffusion coefficients of PC by the NMR field gradient technique, Raman spectra, and NMR spectra. Walden's products are almost constant in the range up to and over 3.0 M. Therefore, Li ions are considered to be quite free from the firm interaction with anions even in such concentrated solutions. The appearance of the maximum conductivity at about 0.8 M is explained by associating with the concentration dependence of the solution viscosity. A remarkable increase in the solution viscosity was observed in a concentration beyond 2.0 M, and it can be ascribed to the cluster formation of lithium ions with PC molecules of the solvent. Such an idea of clusters can reasonably interpret some of the characteristic changes of the viscosities, the diffusion coefficients, the Raman spectra, and the NMR spectra at concentrations over 2 M.

    Original languageEnglish
    Pages (from-to)5040-5044
    Number of pages5
    JournalJournal of Physical Chemistry B
    Volume104
    Issue number20
    Publication statusPublished - May 25 2000

    Fingerprint

    Solvation
    propylene
    Viscosity
    Propylene
    solvation
    Carbonates
    carbonates
    Ions
    viscosity
    conductivity
    Nuclear magnetic resonance
    Lithium
    nuclear magnetic resonance
    Raman scattering
    ions
    diffusion coefficient
    lithium
    Raman spectra
    Anions
    Negative ions

    All Science Journal Classification (ASJC) codes

    • Physical and Theoretical Chemistry
    • Surfaces, Coatings and Films
    • Materials Chemistry

    Cite this

    Kondo, K., Sano, M., Hiwara, A., Omi, T., Fujita, M., Kuwae, A., ... Yokoyama, H. (2000). Conductivity and Solvation of Li+ Ions of LiPF6 in Propylene Carbonate Solutions. Journal of Physical Chemistry B, 104(20), 5040-5044.

    Conductivity and Solvation of Li+ Ions of LiPF6 in Propylene Carbonate Solutions. / Kondo, Kazutaka; Sano, Mitsuru; Hiwara, Akio; Omi, Takehiko; Fujita, Miho; Kuwae, Akio; Iida, Masayasu; Mogi, Koichi; Yokoyama, Haruhiko.

    In: Journal of Physical Chemistry B, Vol. 104, No. 20, 25.05.2000, p. 5040-5044.

    Research output: Contribution to journalArticle

    Kondo, K, Sano, M, Hiwara, A, Omi, T, Fujita, M, Kuwae, A, Iida, M, Mogi, K & Yokoyama, H 2000, 'Conductivity and Solvation of Li+ Ions of LiPF6 in Propylene Carbonate Solutions', Journal of Physical Chemistry B, vol. 104, no. 20, pp. 5040-5044.
    Kondo K, Sano M, Hiwara A, Omi T, Fujita M, Kuwae A et al. Conductivity and Solvation of Li+ Ions of LiPF6 in Propylene Carbonate Solutions. Journal of Physical Chemistry B. 2000 May 25;104(20):5040-5044.
    Kondo, Kazutaka ; Sano, Mitsuru ; Hiwara, Akio ; Omi, Takehiko ; Fujita, Miho ; Kuwae, Akio ; Iida, Masayasu ; Mogi, Koichi ; Yokoyama, Haruhiko. / Conductivity and Solvation of Li+ Ions of LiPF6 in Propylene Carbonate Solutions. In: Journal of Physical Chemistry B. 2000 ; Vol. 104, No. 20. pp. 5040-5044.
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    AU - Fujita, Miho

    AU - Kuwae, Akio

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