TY - JOUR
T1 - Redox active ionic liquid as efficient mediator and solvent for visible light-driven B 12 catalytic reactions
AU - Shimakoshi, Hisashi
AU - Houfuku, Noriyuki
AU - Chen, Li
AU - Hisaeda, Yoshio
N1 - Funding Information:
We express our gratitude to Professor Masahiro Goto and Dr. Fukiko Kubota (Kyushu Univesity, Japan) for helping to measure the viscosity of the ionic liquid. This study was partially supported by JSPS KAKENHI Grant Number 18H04265 in Precisely Designed Catalysts with Customized Scaffolding and Grant Number JP16H04119 , and by JSPS and PAN under the Research Cooperative Program Grant Number AJ180081 (30-0004-04) and a Grant from the Nippon Sheet Glass Foundation ( HAKF541800 ).
PY - 2019/4
Y1 - 2019/4
N2 - 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.
AB - 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.
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U2 - 10.1016/j.gee.2019.03.001
DO - 10.1016/j.gee.2019.03.001
M3 - Article
AN - SCOPUS:85064079053
VL - 4
SP - 116
EP - 120
JO - Green Energy and Environment
JF - Green Energy and Environment
SN - 2096-2797
IS - 2
ER -