Search results for "methylimidazolium"
showing 10 items of 20 documents
Ultrasonic and Volumetric Properties of 1-Ethyl-3-methylimidazolium Trifluoromethanesulfonate Ionic Liquid with 2-Propanol or Tetrahydrofuran at Seve…
2011
Densities and speeds of sound of 1-ethyl-3-methylimidazolium trifluoromethanesulfonate mixtures with 2-propanol and tetrahydrofuran (THF), as well as of the pure components, have been measured over the whole range of compositions at T = (278.15 to 328.15) K and P = (101 ± 2) kPa. From these experimental data, the excess molar volume, excess speed of sound, and excess isentropic compressibility have been calculated and fitted to an extended version of the Redlich–Kister equation, which takes into account the dependence on composition and temperature simultaneously. The Prigogine–Flory–Patterson theory has also been used to explain the behavior of these systems.
Mesoscopic structural organization in triphilic room temperature ionic liquids
2013
Room temperature ionic liquids are one of the most exciting classes of materials in the last decade. The interest for these low melting, ionic compounds stems from both their technological impact and the stimulating plethora of structural and dynamic peculiarities in the mesoscopic space-time scales. It is nowadays well-established that they are characterised by an enhanced degree of mesoscopic order originating from their inherent amphiphilicity. In this contribution we highlight the existence of a further degree of mesoscopic complexity when dealing with RTILs bearing a medium length fluorous tail: such triphilic materials (they simultaneously contain polar, hydrophobic and fluorophilic m…
Emerging Evidences of Mesoscopic-Scale Complexity in Neat Ionic Liquids and Their Mixtures
2017
Ionic liquids (ILs) represent a blooming class of continuously developing advanced materials, with the aiming of a green chemical industry. Their appealing physical and chemical properties are largely influenced by their micro- and mesoscopic structure that is known to possess a high degree of hierarchical organization. High-impact application fields are largely affected by the complex morphology of neat ionic liquids and their mixtures. This Perspective highlights new arising research directions that point to an enhanced level of structural complexity in several IL-based systems, including mixtures. The latter represent a change in paradigm in the approach to formulate new, task-specific I…
Pressure-responsive mesoscopic structures in room temperature ionic liquids
2015
Among the most spectacular peculiarities of room temperature ionic liquids, their mesoscopically segregated structural organization keeps on attracting attention, due to its major consequences for the bulk macroscopic properties. Herein we use molecular dynamics simulations to explore the nm-scale architecture in 1-octyl-3-methylimidazolium tetrafluoroborate, as a function of pressure. This study reveals an intriguing new feature: the mesoscopic segregation in ionic liquids is characterized by a high level of pressure-responsiveness, which progressively vanishes upon application of high enough pressure. These results are in agreement with recent X-ray scattering data and are interpreted in …
CCDC 1056053: Experimental Crystal Structure Determination
2015
Related Article: M.B. Diop, L. Diop, L. Plasseraud, T. Maris|2015|Acta Crystallogr.,Sect.E:Cryst.Commun.|71|520|doi:10.1107/S2056989015005988
CCDC 198167: Experimental Crystal Structure Determination
2003
Related Article: J.D.Holbrey, W.M.Reichert, I.Tkatchenko, E.Bouajila, O.Walter, I.Tommasi, R.D.Rogers|2003|Chem.Commun.||28|doi:10.1039/b211519k
CCDC 198166: Experimental Crystal Structure Determination
2003
Related Article: J.D.Holbrey, W.M.Reichert, I.Tkatchenko, E.Bouajila, O.Walter, I.Tommasi, R.D.Rogers|2003|Chem.Commun.||28|doi:10.1039/b211519k
CCDC 1446403: Experimental Crystal Structure Determination
2016
Related Article: Gabriella Cavallo, Giancarlo Terraneo, Alessandro Monfredini, Marco Saccone, Arri Priimagi, Tullio Pilati, Giuseppe Resnati, Pierangelo Metrangolo, Duncan W. Bruce|2016|Angew.Chem.,Int.Ed.|55|6300|doi:10.1002/anie.201601278
CCDC 156977: Experimental Crystal Structure Determination
2002
Related Article: S.Kiviniemi, M.Nissinen, T.Alaviuhkola, K.Rissanen, J.Pursiainen|2001|J.Chem.Soc.,Perkin Trans.2||2364|doi:10.1039/b100775k
CCDC 649689: Experimental Crystal Structure Determination
2008
Related Article: M.Azouri, J.Andrieu, M.Picquet, P.Richard, B.Hanquet, I.Tkatchenko|2007|Eur.J.Inorg.Chem.||4877|doi:10.1002/ejic.200700590