382150-50-7Relevant articles and documents
Photostability of a highly luminescent europium β-diketonate complex in imidazolium ionic liquids
Nockemann, Peter,Beurer, Eva,Driesen, Kris,Van Deun, Rik,Van Hecke, Kristof,Van Meervelt, Luc,Binnemans, Koen
, p. 4354 - 4356 (2005)
A high quantum yield and an enhanced photostability was found for a europium(III) tetrakis(2-thenoyltrifluoroacetonate) complex after dissolving the complex in a weakly-coordinating imidazolium ionic liquid. The Royal Society of Chemistry 2005.
Viscosity and diffusivity for the ionic liquid 1-hexyl-3-methyl-imidazolium Bis(trifluoromethylsulfonyl)amide with 1-octene
Ahosseini, Azita,Weatherley, Laurence R.,Scurto, Aaron M.
, p. 3715 - 3721 (2011)
In order to correlate and predict interfacial mass transfer rates for ionic liquids and organic components, transport properties are required at various temperatures and, importantly, compositions. Here, the viscosity of mixtures of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([HMIm][Tf 2N]) with 1-octene to the liquid-liquid saturation limit were measured at four different isotherms [(10, 25, 50, and 75) °C]. The viscosity of a [HMIm][Tf2N] + 1-octene mixture decreases up to 33 % over the pure ionic liquid in the temperature range studied. The computed viscosity deviation ("excess viscosity") demonstrates a negative trend throughout the composition range and diminishes with increasing temperature. The self-diffusivity of both 1-octene and [HMIm][Tf2N] (cation) were measured at (25 and 50) °C and increased up to 40 % with increasing composition of 1-octene. The self-diffusivities were of the order of (10 -11 and 10-10) m2·s-1 for the cation and 1-octene, respectively.
Probing CO2 Reduction Pathways for Copper Catalysis Using an Ionic Liquid as a Chemical Trapping Agent
Etzold, Bastian J. M.,Hermans, Yannick,Hofmann, Jan P.,Katsounaros, Ioannis,Reichert, Andreas M.,Schmatz, Patrick,Shen, Liu-Liu,Straub, Sascha-Dominic,Zhang, Gui-Rong
supporting information, p. 18095 - 18102 (2020/09/09)
The key to fully leveraging the potential of the electrochemical CO2 reduction reaction (CO2RR) to achieve a sustainable solar-power-based economy is the development of high-performance electrocatalysts. The development process relies heavily on trial and error methods due to poor mechanistic understanding of the reaction. Demonstrated here is that ionic liquids (ILs) can be employed as a chemical trapping agent to probe CO2RR mechanistic pathways. This method is implemented by introducing a small amount of an IL ([BMIm][NTf2]) to a copper foam catalyst, on which a wide range of CO2RR products, including formate, CO, alcohols, and hydrocarbons, can be produced. The IL can selectively suppress the formation of ethylene, ethanol and n-propanol while having little impact on others. Thus, reaction networks leading to various products can be disentangled. The results shed new light on the mechanistic understanding of the CO2RR, and provide guidelines for modulating the CO2RR properties. Chemical trapping using an IL adds to the toolbox to deduce the mechanistic understanding of electrocatalysis and could be applied to other reactions as well.
Distribution of a monovalent anion in various ionic liquid/water biphasic systems: Relationship of the distribution ratio of picrate ions with the aqueous solubility of ionic liquids
Watanabe, Yuta,Katsuta, Shoichi
, p. 696 - 701 (2014/04/03)
The distribution of picrate anions in various ionic liquid (IL)/water biphasic systems was investigated at 298.2 K. The ILs were 1-butyl-3- methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide, 1-hexyl-3-methylimidazolium hexafluorophosphate, 1-hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl) amide, 1-methyl-3-octylimidazolium tetrafluoroborate, 1-methyl-3- octylimidazolium hexafluorophosphate, 1-methyl-3-octylimidazolium bis(trifluoromethanesulfonyl)amide, 1-methyl-3-octylimidazolium bis(pentafluoroethanesulfonyl)amide, 1-butyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)amide, 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)amide, methyltrioctylammonium bis(trifluoromethanesulfonyl)amide, 1-butylimidazolium bis(trifluoromethanesulfonyl)amide, and 1-butylpyrrolidinium bis(trifluoromethanesulfonyl)amide. The distribution ratios in dilute conditions (D) and the aqueous solubilities of the ILs (square root of the solubility product, Ksp1/2) were determined. The extractability of the picrate anion generally increases with increasing hydrophobicity of the IL cation (C+) and increasing hydrophilicity of the IL anion (A -). For the ILs with different C+ but the same A -, the log D vs log Ksp1/2 plot generally gives a linear relationship with a slope of -1; when the ILs have similar K sp1/2 values, the D value decreases in the C+ order, protic cations ?1,3-dialkylimidazolium cations > other cations. For the ILs comprising different A- but the same C+, the log D versus log Ksp1/2 plot is close to a linear line with a slope of 1. These regularities can be explained on the basis of the extraction mechanism including both the ion pair extraction with C+ and the ion exchange with A-.
