Room-temperature ionic liquids data

D. Morgan, L. Feiguson, P. Scovazzo, Diffusivities of gases in room-temperature ionic liquids data and correlations obtained using a lag-time technique, Ind. Eng. Chem. Res., 44, 4815-4823 (2005). 

Kilaru P, Baker GA, Scovazzo P (2007) Density surface tension measurements of imidazolium-, quaternary phosphonium-, and ammonium-based room-temperature ionic liquids data and correlations. J Chem Eng Data 52 2306-2314... 

Bowron et al. [11] have performed neutron diffraction experiments on 1,3-dimethylimidazolium chloride ([MMIM]C1) in order to model the imidazolium room-temperature ionic liquids. The total structure factors, E(Q), for five 1,3-dimethylimidazolium chloride melts - fully probated, fully deuterated, a 1 1 fully deuterated/fully probated mixture, ring deuterated only, and side chain deuterated only - were measured. Figure 4.1-4 shows the probability distribution of chloride around a central imidazolium cation as determined by modeling of the neutron data. 

The catalytic potential of the MTO/UHP oxidation system has also been tested in the room-temperature ionic liquid [EMIM] [BF4], in which it is soluble [77]. In contrast, the olefin is poorly soluble in such solvenfs. Therefore, the whole system is biphasic. Excellent conversions and selectivities for the epoxides of a wide number of olefinic substrates were reached under these anhydrous conditions. The exception was 1-decene (data collected in Table 17), for which poor conversion (entry 9, Table 17) may result in phase transfer problems, since it is the least soluble substrate in the ionic liquid. 

Oliveri et al. (2009) presented the development of an artificial tongue based on cyclic voltammetry at Pt microdisk electrodes for the classification of olive oils according to their geographical origin the measurements are made directly in the oil samples, previously mixed with a proper quantity of a RTIL (room temperature ionic liquid). The pattern recognition techniques applied were PCA for data exploration and fc-NN for classification, validating the results by means of a cross-validation procedure with five cancellation groups. 

Table 3.2-3 Specific conductivity data for other room-temperature ionic liquids... 

In none of the above cases has a reaction been performed whilst taking the EXAFS data. Hamill et al. [50] have investigated catalysis of the Heck reaction by palladium salts and complexes in room-temperature ionic liquids. On dissolution of palladium ethanoate in [BMIMj and N-butylpyridinium ([BP] ) hexafluorophos-phate and tetrafluoroborate ionic Hquids, and triethyl-hexyl ammonium bis(trifluo-romethanesulfonyl)imide, a gradual change from ethanoate coordination to the formation of palladium metal was observed in the Pd K-edge EXAFS, as shown in Figure 4.1-13. 

Wu, C-T. et al.. Liquid-liquid equilibria of room temperature ionic liquids and butan-l-ol, /. Chem. Eng. Data, 48,486, 2003. 

Youngs, T.G.A., Del Popolo, M.G., and Kohanoff, J., Development of complex classical forcefields through force matching to ab initio data Application to a room-temperature ionic liquid, /. Phys. Chem. B, 110, 5697-5707, 2006. 

Electrochemical methods can be powerful tools. They can be used to reveal the chemical and physical properties of room-temperature ionic liquids. Most of existing electrochemical techniques [1] developed in aqueous solutions are applicable for the ionic liquids, as demonstrated in the chloroaluminate ionic liquids. However, there are several procedures that must be observed if one is to obtain reliable data in electrochemical measurements. This section describes the procedures that are important for the ionic liquids. 

Frez C, Diebold GJ, Tran C et al. (2006) Determination of thermal diffusivities, thermal conductivities, and sound speeds of room temperature ionic liquids by the transient grating technique. J Chem Eng Data 51 1250-1255... 

Room temperatures ionic liquids (ILs)- salts with melting points below 100°C- have attracted considerable attention as novel reaction media over the last decade. By virtue of their nonflammability, thermal stability and non-volatility ionic liquids have been proposed as alternative solvents receiving serious consideration with the promise of both environmental and technological benefits. Really, recent data showing that commonly used ILs have very low but not null vapour pressures (they can distilled at low pressure), that a large group of ILs is combustible" and some commercially available ionic compoimds are toxic for some aquatic species, have cast a shadow on the "green character of ILs. The instinctive skepticism toward... 

Due to the growing interest in ionic liquids as electrochemical solvents, there has been a dramatic increase in the amount of conductivity data since the st edition of this volume was published. Only a few years ago it appeared that the room-temperature conductivity of ionic liquids was limited to the range of 20 mS cm h However, the recent development of ionic liquids with the [(HF)2.3F] anion has resulted in room-temperature ionic liquid conductivities in excess of 100 mS cm [51] ... 

O Mahony AM, Silvester DS, Aldous L, Hardacre C, Compton RG (2008) Effect of water on the electrochemical window and potential limits of room-temperature ionic liquids. J Chem Eng Data 53 2884-2891... 

The equation of Johnson et alf is one of most accurate available for LJ chains, since it is heavily based on computer simulation data. Equally the soft-SAFT equation is very accurate for modelling mixtures of associating LJ fluids. In their extension to mixtures Bias and Vega performed extensive simulations on model homo- and heteronuclear fluids and their mixtures to test the soft-SAFT approach, before application of the theory to real fluids in a subsequent paper was undertaken by the authors. Soft-SAFT has been applied to the study of alkanes and their binary and ternary mixtures, perfluoro-alkanes, alcohols, carbon dioxide,polymers, and more recently room temperature ionic liquids. ... 

Twenty-five of the seventy salts melting below 30°C (and for which a crystal structure determination is available) contain one of just three of the foregoing ions, with one, [N(S02CF3)2] , being found in 20 room-temperature ionic liquids. The data also underline the considerable conpositional diversity evident in materials that, while qualifying as ionic liquids, are under-recognised as such. 

Wu RL, Wang XL, Li F, li HZ, Wang YZ (2009) Green eomposite films prepared from cellulose, starch and lignin in room-temperature ionic liquid. Bioresour Technol 100 2569-2574 Wyman CE, Dale BE, Elander RT, Holtzapple M, Ladisch MR, Lee YY (2005) Comparative sugar recovery data from laboratory scale application of leading pretreatment technologies to corn stover. Bioresour Technol 96 2026-2032... 

The aim of this chapter also is the introduction of the photo physical study of model system ( 3-carotene in RTILs) mimicking very well spectroscopic data of this photosynthetic pigment in situ in the photosynthetic system Unique fluorescence properties of P-carotene in room temperature ionic liquids (RTIL) (Bialek-Bylka et al., 2007) and new (P-carotene) electronic states (3Ag- and 1B -) of both impxjrtant in photosynthesis isomers all-frans and 15-cis in ionic liquid with dimethylformamide (DMF) were found (Bialek-Bylka et al., 2008) and also a sensor detecting the methoxy group in the cation part of imidazolium ionic liquid was developed by us (Pawlak et al., 2009). In order to determine a detailed answer to the unique fluorescence properties, aroimd 100 times higher fluorescence yield of P-carotene in (ILl) (l-methyl-3-octyloxymethylimidazolium tetrafluoroborate) than in standard solvent n-hexane, the designed structures of RTILs were synthesized and carefully purified 1-methyl-3-octyloxymethylimidazolium tetrafluoroborate (ILl), l-methyl-3-... 

Paulechka YU (2010) Heat capacity of room-temperature ionic liquids a critical review. J Phys Chem Ref Data 39 033108/1-24... 

Sanchez LG, Espel JR, Onink F, Meindersma GW, de Haan AB (2009) Density, viscosity, and surface tension of synthesis grade imidazolium, pyridinium, and pyrrolidinium based room temperature ionic liquids. J Chem Eng Data 54 2803-2812... 

Weiss VC, Heggen B, Muller-Plathe F (2010) Critical parameters and surface tension of the room temperature ionic liquid [bmim][PF6] a corresponding-states analysis of experimental and new simulation data. J Phys Chem C 114 3599-3608... 

---