HiSPEC-3000, Johnson Matthey) was purchased from Alfa Aesar. HClO4 solution (70%) was purchased from Sigma-Aldrich. 1-Ethyl-3-methylimidazolium
bis(trifluomethanesulfonyl)imide ([C2C1im][NTf2]) and lithium bis(trifluomethanesulfonyl)imide
(NTf2) (99%) were purchased from IoLiTec GmbH. 1-Bromobutane
(≥98%) and 1-bromodecane (≥98%) were obtained from Merck.
1-Bromohexane (≥99%) and 1-bromooctane (≥99%) were provided
by Acros Organics. 1-Methylimidazole (99%) was supplied by Solvent
Innovation GmbH. All chemicals were used as received without further
purification.