An ionic liquid containing arsonium cation

Ryoto Inaba; Tomohiro Imai; Showa Kitajima; Hitoshi Kasai; Kouki Oka; Ryoyu Hifumi; Ikuyoshi Tomita; Masahiro Yoshizawa-Fujita; Kensuke Naka; Hiroaki Imoto

doi:10.1039/D4CC05072J

An ionic liquid containing arsonium cation†

Ryoto Inaba,^a Tomohiro Imai,^b Showa Kitajima,^c Hitoshi Kasai,^c Kouki Oka,

^cde Ryoyu Hifumi,^b Ikuyoshi Tomita,^b Masahiro Yoshizawa-Fujita,

^f Kensuke Naka

^ag and Hiroaki Imoto

*^agh

Author affiliations

* Corresponding authors

^a Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-0962, Japan
E-mail: himoto@kit.ac.jp

^b Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan

^c Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan

^d Carbon Recycling Energy Research Center, Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan

^e Deuterium Science Research Unit, Center for the Promotion of Interdiscipli-nary Education and ResearchKyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan

^f Department of Materials and Life Sciences, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan

^g Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-0962, Japan

^h FOREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan

Abstract

Cations in ionic liquids (ILs) are typically derived from ammonium or phosphonium structures with long alkyl chains, and it is well established that the central atom significantly influences the properties of the resulting ILs. In this study, an arsonium-based IL, trihexylmethylarsonium bis(trifluoromethylsulfonyl)amide, was synthesized. The arsonium cation was found to contribute to lower viscosity and higher ionic conductivity, while maintaining sufficient stability compared to its phosphonium counterpart.

Chemical Communications

An ionic liquid containing arsonium cation†

Abstract

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