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Table 5 A selection of cations commonly used for ionic liquids

From: Pretreatment for biorefineries: a review of common methods for efficient utilisation of lignocellulosic materials

AcronymCationRefs.
[Hmim]1-Methylimidazolium[132]
[C4-py]1-Butyl-pyridinium[133, 134]
[Bmim]1-Butyl-3-methylimiazolium[127, 132]
[Emim]1-Ethyl-3-methylimidazolium[127, 134]
[Mmim]1,3-Dimethylimidazolium[135]
[Pdmim]1-Propyl-2,3-dimethylimidazolium[136]
[Hexpy]1-Hexylpyridinium[134]
[Bmpyr]1-Butyl-3-methyl pyridinium[137]
[Hmpyr]1-Hexyl-3methyl pyridinium[137]
[Amim]1-Allyl-3-methylimdazolium[127]
[Cnpyr]1-Alkylpyridinium[138]
[mDBN]5-Methyl-1,5-diazabicyclo[4.3.0]-non-5-enium[139]
[DBNH]1,5-Diazabicyclo[4.3.0] non-5-enium[139]