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Nanoscale segregation in room temperature ionic liquids.
This study provides the first experimental evidence of the existence of nanoscale heterogeneities in neat liquid and supercooled RTILs, such as 1-alkyl-3-methyl imidazolium-based salts, using X-ray diffraction, showing a behavior that resembles the density one only below the glass transition, thus suggesting a complex behavior above this temperature.
Quasielastic neutron scattering characterization of the relaxation processes in a room temperature ionic liquid
We report the first quasielastic neutron scattering measurements on a room temperature ionic liquid: 1-n-butyl-3-methylimidazolium hexafluorophosphate, [bmim][PF6]. Data were collected using a medium
Mesoscopic Structural Heterogeneities in Room-Temperature Ionic Liquids
Ionic liquids represent an exciting novel class of materials with potentially enormous applicative impact; they are proposed as environmentally responsible replacements for the noxious volatile
Morphology and intermolecular dynamics of 1-Alkyl-3-methylimidazolium bis{(trifluoromethane)sulfonyl}amide ionic liquids: Structural and dynamic evidence of nanoscale segregation
Here we report on the structural and dynamical properties of a series of room temperature ionic liquids, namely 1-alkyl-3-methylimidazolium bis{(trifluoromethane)sulfonyl}amide ([Cnmim][NTf2]), with
Alkylimidazolium based ionic liquids: impact of cation symmetry on their nanoscale structural organization.
The gathered data indicate that both asymmetric and symmetric members are characterized by the occurrence of a distinct degree of mesoscopic structural organization above a given threshold in the side alkyl chain length, regardless of the cation symmetry.
Nanoscale organization in piperidinium-based room temperature ionic liquids.
Here we report on the complex nature of the phase diagram of N-alkyl-N-methylpiperidinium bis(trifluoromethanesulfonyl)imide ionic liquids using several complementary techniques and on their
Effect of cation symmetry and alkyl chain length on the structure and intermolecular dynamics of 1,3-dialkylimidazolium bis(trifluoromethanesulfonyl)amide ionic liquids.
The results suggest that the local structure of RTILs with symmetric cations is more solid-like than that of RTils with asymmetric cation, within the context of the nanoscale heterogeneities ofRTILs.
Emerging Evidences of Mesoscopic-Scale Complexity in Neat Ionic Liquids and Their Mixtures.
New arising research directions that point to an enhanced level of structural complexity in several IL-based systems, including mixtures are highlighted, which have the potential to further expand their range of applications.
Liquid structure of trihexyltetradecylphosphonium chloride at ambient temperature: an X-ray scattering and simulation study.
A good agreement is found between the structure factor and pair correlation functions obtained from MD simulations and the corresponding experimental observables, thus strongly validating the interaction potential used in the simulations.