Synthesis and physical properties of tunable aryl alkyl ionic liquids based on 1-aryl-4,5-dimethylimidazolium cations

Autor: Stefan Fritsch, Thomas Strassner
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1278-1285 (2024)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.20.110
Popis: We present a new class of tunable aryl alkyl ionic liquids (TAAILs) based on 1-aryl-4,5-dimethylimidazolium cations with electron-withdrawing and -donating substituents in different positions of the phenyl ring and the bis(trifluoromethylsulfonyl)imide (NTf2) anion. We investigated the effect of additional methyl groups in the backbone of the imidazolium core on the physical properties regarding viscosity, conductivity and electrochemical window. With an electrochemical window of up to 6.3 V, which is unprecedented for TAAILs with an NTf2 anion, this new class of TAAILs demonstrates the opportunities that arise from modifications in the backbone of the imidazolium cation.
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