Static and transport properties of alkyltrimethylammonium cation-based room-temperature ionic liquids

Shiro Seki, Seiji Tsuzuki, Kikuko Hayamizu, Nobuyuki Serizawa, Shimpei Ono, Katsuhito Takei, Hiroyuki Doi, Yasuhiro Umebayashi

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We have measured physicochemical properties of five alkyltrimethylammonium cation-based room-temperature ionic liquids and compared them with those obtained from computational methods. We have found that static properties (density and refractive index) and transport properties (ionic conductivity, self-diffusion coefficient, and viscosity) of these ionic liquids show close relations with the length of the alkyl chain. In particular, static properties obtained by experimental methods exhibit a trend complementary to that by computational methods (refractive index ∞ [polarizability/molar volume]). Moreover, the self-diffusion coefficient obtained by molecular dynamics (MD) simulation was consistent with the data obtained by the pulsed-gradient spin-echo nuclear magnetic resonance technique, which suggests that computational methods can be supplemental tools to predict physicochemical properties of room-temperature ionic liquids.

Original languageEnglish
Pages (from-to)4590-4599
Number of pages10
JournalJournal of Physical Chemistry B
Volume118
Issue number17
DOIs
Publication statusPublished - 2014 May 1
Externally publishedYes

ASJC Scopus subject areas

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

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