Redox active ionic liquid as efficient mediator and solvent for visible light-driven B 12 catalytic reactions

Hisashi Shimakoshi, Noriyuki Houfuku, Li Chen, Yoshio Hisaeda

Research output: Contribution to journal › Article

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Abstract

The redox active ionic liquid, 1-ethyl-4-(methoxycarbonyl)pyridinium bis(trifluoromethanesulfonyl)amide (RIL), was synthesized from its iodide form by an anion exchange reaction of Li(NTf 2 ) with viscos liquid (η = 122 cP at 25 °C) and characterized by NMR, IR, and elemental analysis. The compound showed reversible redox couples at −0.65 V and −1.48 V vs. Ag/AgCl and worked as an electron mediator in the B 12 complex/[Ru(bpy) 3 ]Cl 2 photosensitizer catalytic system under visible light irradiation. The catalytic efficiency in the RIL was higher than those in DMF, MeOH, and the redox inactive ionic liquid, 1-butyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)amide.

Original languageEnglish
Pages (from-to)116-120
Number of pages5
JournalGreen Energy and Environment
Volume4
Issue number2
DOIs
Publication statusPublished - Apr 1 2019

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Amides
Ionic liquids
Photosensitizers
Ion exchange
Negative ions
Nuclear magnetic resonance
Irradiation
Electrons
Liquids
Chemical analysis
Oxidation-Reduction

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment

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Redox active ionic liquid as efficient mediator and solvent for visible light-driven B 12 catalytic reactions . / Shimakoshi, Hisashi; Houfuku, Noriyuki; Chen, Li; Hisaeda, Yoshio.

In: Green Energy and Environment, Vol. 4, No. 2, 01.04.2019, p. 116-120.

Research output: Contribution to journal › Article

Shimakoshi, H, Houfuku, N, Chen, L & Hisaeda, Y 2019, ' Redox active ionic liquid as efficient mediator and solvent for visible light-driven B 12 catalytic reactions ', Green Energy and Environment, vol. 4, no. 2, pp. 116-120. https://doi.org/10.1016/j.gee.2019.03.001
Shimakoshi H, Houfuku N, Chen L, Hisaeda Y. Redox active ionic liquid as efficient mediator and solvent for visible light-driven B 12 catalytic reactions Green Energy and Environment. 2019 Apr 1;4(2):116-120. https://doi.org/10.1016/j.gee.2019.03.001
Shimakoshi, Hisashi ; Houfuku, Noriyuki ; Chen, Li ; Hisaeda, Yoshio. / Redox active ionic liquid as efficient mediator and solvent for visible light-driven B 12 catalytic reactions In: Green Energy and Environment. 2019 ; Vol. 4, No. 2. pp. 116-120.
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