1- Methyl-3-ethylimidazolium chloride

Mitchell, J. A., The Electrodeposition of Cobalt, Iron, Antimony and Their Alloys from Acidic Aluminum Chloride 1 -methyl-3-ethylimidazolium Chloride Room-Temperature Molten Salts, Ph.D. Dissertation, 1997, University of Mississippi University, MS. 

Comprehensive reviews describing the preparation, purification, and physical and electrochemical properties of these melts have been published [17-20]. The most popular systems are mixtures of A1C13 with either l-(l-butyl)pyridinium chloride (BupyCl) or 1 -methyl-3-ethylimidazolium chloride (MeEtimCl). These systems are very versatile solvents for electrochemistry because they are stable over a wide temperature range. In many ways they can be considered to be a link between conventional nonaqueous solvent/supporting electrolyte systems and conventional high-temperature molten salts. 

Conducting liquids are produced at room temperature by the reaction of 1-methyl-3-ethylimidazolium chloride or N-butylpyridinium chloride with AICI3. These liquids are good... 

Bolkan SA, Yoke JT (1986) Room temperature fused salts based on copper(I) chloride-1-methyl-3-ethylimidazolium chloride mixtures. J Chem Eng Data 31 194-197... 

Strubinger, S.K.D., Sun, I-W, Cleland, W.E., and Hussey, C.L. (1990) Electrochemical and spectroscopic studies of rhenium (IV) monomeric and dimeric chloride complexes in the basic aluminium chloride-1-methyl-3-ethylimidazolium chloride room- temperature molten salts, Inorg. Chem. 29,4246-4252. 

Liao, Q., Pitner, W.R., Steward, G. et al. (1997) Electrodeposition of aluminum from the aluminum chloride-1-methyl-3-ethylimidazolium chloride room temperature molten salt -I- benzene. J. Electrochem. Soc, 144(3), 936-943. 

Jeng EGS, Sun IW (1997) Electrochemistry of tellurium (IV) in the basic aluminum chloiide-l-methyl-3-ethylimidazolium chloride room temperature molten salt. J Electrochem Soc 144 2369-2374... 

Stuff, J. R., Separation of cations in buffered l-methyl-3-ethylimidazolium chloride + aluminum chloride ionic liquids by ion chromatography, J. Chromatogr, 547,484-487,1991. 

Dymek, C. J., Grossie, D. A., Fratini, A. V., and Adams, W. W., Evidence for the presence of hydrogen bonded ion-ion interaction in the molten salt precursor, l-methyl-3-ethylimidazolium chloride, /. Molec. Struct., 213, 25-34,1989. 

Carper, W. R., Pflug, J. L., and Wilkes, J. S., Multiple spin probe NMR-studies of ionic structure in l-methyl-3-ethylimidazolium chloride AlClj molten-salts, Inorg. Chim. Acta, 193,201,1992. 

Dieter, K. M., Dymek, G. J., Heimer, N. E. et al., Ionic structure and interactions in l-methyl-3-ethylimidazolium chloride-AlClj molten-salts, /. Am. Chem. Soc., 110,2722,1988. 

A 1 2 mixture of l-methyl-3-ethylimidazolium chloride and aluminum trichloride, an ionic liquid that melts below room temperature, has been recommended recently as solvent and catalyst for Friedel-Crafts alkylation and acylation reactions of aromatics (Boon et al., 1986), and as solvent for UV/Vis- and IR-spectroscopic investigations of transition metal halide complexes (Appleby et al., 1986). The corresponding 1-methyl-3-ethylimidazolium tetrachloroborate (as well as -butylpyridinium tetrachlo-roborate) represent new molten salt solvent systems, stable and liquid at room temperature (Williams et al., 1986). 

Figure 17.6 (a) Reverse normal pulse voltammogram, (b) current measured prior to the analysis pulse in (a), and (c) normal large-amplitude pulse voltammogram at a platinum electrode for a 13.4 mM solution of Ti(IV) in the 60-40 mol% AlCl3-l-methyl-3-ethylimidazolium chloride melt at 25°C. [From Ref. 68, with permission.]... 

Figure 17.12 Spectropotentiostatic experiment conducted with a 6.08 tnM solution of [Re3Cl,2]3 in the 49.0-51.0 mol% AlCl3-l-methyl-3-ethylimidazolium chloride melt at40°C using the cell shown in Figure 17.11. Applied potentials (V) (a) open circuit, (b) -0.266, (c) -0.303, (d) -0.325, (e) -0.340, (f) -0.352, (g) -0.364, (h) -0.383, (i) -0.405, (j) -0.550. Inset Nernst plot constructed from the spectra in this figure. [From S. K. D. Strubinger, I.-W. Sun, W. E. Cleland, and C. L. Hussey, Inorg. Chem. 29 993 (1990), with permission.]...

InSb is an important compound semiconductor of the III-V family for optoelectronic purposes. At room temperature the semiconductor has a direct band gap of 0.17 eV and a high mobility of charge carriers. Similar to GaAs, it was reported that InSb can be directly electrodeposited at 45 °C in the Lewis basic chloroin-date ionic liquid InCl3/l-methyl-3-ethylimidazolium chloride, to which SbCU was... 

In 1948, Frank Hurley and Thomas Wier, Jr. [433-436] obtained the first haloaluminate molten salts which melted at room temperature. The authors intended to use these salts as electroplating baths. These first room temperature melts were obtained by combining aluminum chloride with certain organic halide salts. Today, the most useful room temperature molten salts consist of mixtures of aluminum chloride with l-(l-butyl)pyridinium chloride (BPC) or l-methyl-3-ethylimidazolium chloride (MEIC). The structures of BPC and MEIC are given... 

A mixture of l-methyl-3-ethylimidazolium chloride with aluminum chloride also gives an ionic liquid that may be used as electrolytic medium [437]. The medium is not quite inert for example, quinone reacts with an excess of chloride to 2-chlorohydroqui-none in an acid-catalyzed Michael addition [438]. As reference electrode an aluminum wire was used. l-Methyl-3-ethylimidazolium chloride is in MeCN reduced at —2.35 versus Ag in 0.1 M TBAP [439]. 

Friedel-Crafts acylation. Aluminum chloride-mediated acetylation of arenes in the analogous ionic liquid l-methyl-3-ethylimidazolium chloride occurs at room temperature. 

Xu XH, Hussey CL (1992) The electrochemistry of gold at glassy caibon in the basic aluminum chloride-l-methyl-3-ethylimidazolium chloride molten salt. J Electrochem Soc 139 3103-3106... 

Hussey CL, Scheffler TB, Wilkes JS, Fannin AA (1986) Chloroeiluminate equiUbria in the aluminum chloride-l-methyl-3-ethylimidazolium chloride ionic Uquid. J Electrochem Soc... 

Hussey, C., and J. Oye. 1984. Transport numbers in molten addic aluminum chloride-l-methyl-3-ethylimidazolium chloride. Their relationship to emf measurements in chloroaluminate melts. 7 Electrochem Soc 131 (7) 1621. 

The electrochemical behavior of Nb(V) in oxide free basic aluminum chloride -methyl-3-ethylimidazolium chloride - is reported to involve four reduction steps, but reduction to the free metal could not be achieved [1, 2]. Niobium and tantalum chloride cluster cores of the type [M6C1i2] (M=Nb or Ta) in this same ionic liquid have been studied in detail by electrochemical and spectroscopic methods and their behavior compared with the behavior of these systems in an MeCN electrolyte. Four reversible redox states are observed in the span z = 2-5 [3, 4]. 

PT has also been synthesized through anodic oxidation of thiophene or bithiophene in molten salts such as AICI3 and l-methyl-3-ethylimidazolium chloride, and films have been deposited on Pt, W, and glassy carbon electrodes [42], PT has been electrochemically synthesized by several groups, where the main conditions studied were the electrolytic medium, the monomer concentraticai, and the employed electrodes [40, 42-45]. 

Lai, P.K. and Skyllas-Kazakos, M. (1988) Electrodeposition of aluminium in aluminium chloride/l-methyl-3-ethylimidazolium chloride. / Electroanal. Chem, 248(2), 431-440. 

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