L-butyl-3-methylimidazolium bis

Alammar and Mudring [17] have also synthesized ZnO in the form of nanorods with lengths from 50-100 nm and diameters of about 20 nm (Fig. 8.5.) using the ionic liquid l-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide, [C4mim][Tf2N]. 

M. Eckstein, P. Wasserscheid, and U. Kragl, Enhanced enantioselectivity of lipase from Pseudomonas sp. at high temperatures and fixed water activity in the ionic liquid, l-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]amide, Biotechnol. Lett. 2002b, 24, 763-767. 

Fig. 9 Pair-pair radial distribution functions of different solutes in different ionic liquid solutions. Solvents A l-butyl-3-methylimidazolium hexafluorophos-phate B l-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide C tri-hexyl(tetradecyl)phosphonium bis(trifluoromethanesulfonyl)imide. Solutes ...

Let us take as example mixtures between two closely related ionic liquids and an aromatic molecule l-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl) imide C 4C im tf2Nl and toluene, and between 1-butyl-2,3-dimethylimidazolium bis(trifhioromethanesulfonyl)imide [C C mlftCN] and toluene. Structure and... 

Based on their work on supercritical CO2 (see also Scheme 23), Reetz and Leitner introduced a technologically new and interesting continuous flow process for enzymatic reactions [65]. The group designed a protocol for enzymatic reactions, namely the lipase-catalyzed acylation (CAL B) of octan-1 -ol by vinyl acetate in ionic liquids (l-butyl-3-methylimidazolium bis(trifluo-romethanesulfonimide) [BMIM] [BTA]) using supercritical CO2 as the mobile phase (Scheme 25). The alcohol is pumped through the biphasic system and the products are obtained in solvent-free form in a cold trap. The enzyme/ionic liquid mixture can be recycled in batchwise or continuous flow operations. 

Apart from [EMIM]+ cation, researchers have explored other imidazolium-based cations such as l-butyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl) imide ([BDMIM]), l-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM]), and l-dodecyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C12MIM]) [627,628]. For example, Bettini et al. [628] investigated four ILs including [BMIM][NTf2], [Ci2MIM][NTf2], [EMIM][NTf2], and 1-butyl-l-methylpyrrolidinium... 

The ionic liquids used in this work are l-butyl-3-methylimidazolium bis (trifluoromethyl)sulfonyl amide [C4mim] [NTfa],... 

Paulechka, Y.U., Zaitsau, D.H., Kabo, G.J., and Strechan, A.A. (2005) Vapor pressure and thermal stability of ionic liquid l-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide. Thermochim. Acta, 439, 158-160. 

The properties of ILs can also be modified by supporting them on different sohd substrates (e.g., graphite, mica, silica, oxidized silicon, etc.), a concept known as supported ionic liquid phases (SILP) and introduced in the early 2000s by the groups of Mehnert [73], Fehrmann and Wasserscheid [74]. Research done in this area has shown that the SILP strategy can lead to drastically different behavior of the supported ILs, mainly due to the interactions between the anions and/or cations of the I Ls and the solid matrix. For example, Bovio et al. showed that, by supporting the IL l-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIMKNTfj]) on a solid matrix (e.g., amorphous silica, oxidized Si(llO), and mica), hquid-solid phase transitions are induced when thin films of IL rearrange to a sohd-like phase [75]. 

Vibrational cooling rates in room temperature ionic liquids were measured with picosecond time-resolved Raman spectroscopy [63]. The 1570-cm Raman band of the first excited singlet (Sj) state of frans-stilbene was used. The recorded vibrational cooling rates in l-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (emimTf2N) and l-butyl-3-methylimidazolium bis(trifluoromethylsu]fonyl)imide (bmimTf2N) were close to those in ordinary molecular solvents despite a large difference in thermal diffusivity. 

CioHi5FgN304S2 l-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide. 1111a 2385... 

CxoHx5F 304S2, l-Butyl-3-methylimidazolium bis(trifluoromethylsi]lfonyl)imide [174899-83-3]... 

Eckstein, M., P. Wasserscheid, and U. Kragl. 2002. Enhanced Enantioselectivity of Lipase from Pseudomonas Sp. at High Temperatures and Eixed Water Activity in the Ionic Liquid, l-Butyl-3-Methylimidazolium Bis[(Trifluoromethyl)Sulfonyl]Amide. Biotechnology Letters 24 (10) 763-767. 

The cationic fluorinated surfactant, FC-4, unlike other surfactants, forms micelles in the room temperature ionic liquid, l-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (bmimTf2N). Surface tension, freeze-fracture TEM, F NMR, H NMR, and FTIR measurements revealed that the FC-4 cation forms an ion pair with the Tf2N anion, the ion pairs undergo association to form premicellar aggregates, and the premicellar aggregates transform into micelles at the CMC. Reverse micelles are... 

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