Part I: Thermodynamic analysis of volumetric properties of concentrated aqueous solutions of 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-2,3-dimethylimidazolium tetrafluoroborate, and ethylammonium nitrate based on pseudo-lattice theory

Malham, Ibrahim Bou; Letellier, Pierre; Mayaffre, Alain; Turmine, Mireille

doi:10.1016/j.jct.2007.01.007

Cited by 83 publications

(70 citation statements)

References 33 publications

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“…The EMIM-CnS family does not desorb water completely, maybe some mixture between water and IL happens, or it could have pores in the surface at molecular level where the water would be trapped permanently. To remove the water completely in those ILs it is necessary to use one of the drying techniques described in Section 1 [4][5][6]. On the other hand the number of anchorage points for water molecules would depend on the nature of the IL.…”

Section: Resultsmentioning

confidence: 99%

“…Some authors have reported that even only 0.01% water mass content leads to invalid physical magnitude values for the pure compound [4]. There are published two different procedures to remove the water content in the ILs, such as a gentle heating in vacuum for tenths of hours [4,5], or to freeze the sample in vacuum to sublimate the water [6]. The dry samples must be preserved and manipulated in an inert wet free atmosphere to avoid water contamination.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental measurement of the hygroscopic grade on eight imidazolium based ionic liquids

Cuadrado¹,

Domı́nguez-Pérez²,

Rilo³

et al. 2009

Fluid Phase Equilibria

102

109

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental measurement of the hygroscopic grade on eight imidazolium based ionic liquids

Cuadrado¹,

Domı́nguez-Pérez²,

Rilo³

et al. 2009

Fluid Phase Equilibria

102

109

View full text Add to dashboard Cite

“…The existence of a "loose" lattice structure (hereinafter referred to as a pseudolattice) in electrolyte solutions for concentrations beyond 0.01 M is a well-known fact [11][12][13][14][15][16][17][18]. This structural scheme is gradually reinforced up to the highest possible concentrations of the ionic solutions or, in the case of mixtures of ILs, up to the limit of pure IL.…”

Section: Theoretical Sectionmentioning

confidence: 99%

Theoretical model for moisture adsorption on ionic liquids: A modified Brunauer–Emmet–Teller isotherm approach

Carrete¹,

García²,

Rodríguez³

et al. 2011

Fluid Phase Equilibria

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“…From the viewpoint of physico-chemical properties of EAN as liquid and/or solvent, its conductivity [15][16][17][18]21], viscosity [18,19], density [18,20,21] and phase transitions [18,21] have been reported. In addition, the acid-base property was discussed in Ref.…”

Section: Introductionmentioning

confidence: 99%

Liquid Structure and the Ion-Ion Interactions of Ethylammonium Nitrate Ionic Liquid Studied by Large Angle X-Ray Scattering and Molecular Dynamics Simulations

Umebayashi

Chung

Mitsugi

et al. 2008

J. Comput. Chem. Jpn.

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Room temperature ionic liquids (RTILs) are useful as new solvents or materials owing to their favorable properties such as negligible vapor pressure, non-flammability, and wide electrochemical window. For further development of new RTILs, it is indispensable to understand macroscopic properties as solvent and/or liquids of RTILs at a molecular or atomistic level. Here, liquid structure and the ion-ion interactions of room temperature ionic liquid ethylammonium nitrate (EAN) were studied by means of large angle X-ray scattering (LAXS) experiment and molecular dynamics simulations. X-ray interference function for EAN shows a small peak of 0.62Å -1 indicating nano-scale segregation in the ionic liquid. X-ray radial distribution function as the form of D(r) -4πr 2 ρ 0 evidently shows a peak of 3.4 and broad ones of 4.7, 8 and 12Å, suggesting that EAN has long range ordering in the liquid state. The intra-molecular X-ray interference function was estimated on the basis of molecular geometries found in crystals to yield the inter-molecular X-ray pair correlation function G LAXS inter (r). In G LAXS inter (r), peaks of 3.0, 3.4, and 4.7Å were found as the atom-atom correlation. The peak of 3.0Å can be assigned to the atom-atom correlation of N (C 2 H 5 NH 3 + ) O (NO 3 -) in the NH O hydrogen bonding. In addition, the peak of 3.4Å is also ascribable to C (C 2 H 5 NH 3 + ) O (NO 3 -) correlations in the CH O interactions. Molecular dynamics simulations based on newly developed force fields to describe a series of primary ammonium cation were performed to ascribe the peaks found in G LAXS inter (r). The X-ray interference function i MD (s) and the pair correlation function G MD (r) derived from simulations were reasonably in agreement with the experimental ones. According to the partial atom-atom correlation functions derived from the simulations, the experimentally observed peaks of 3.0 and 3.4Å can be ascribable to the NH O and the CH O correlations in the closest ethylammonium and nitrate interaction, respectively. The CH O interactions may play an important role in macroscopic properties of this kind of ionic liquids.

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Part I: Thermodynamic analysis of volumetric properties of concentrated aqueous solutions of 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-2,3-dimethylimidazolium tetrafluoroborate, and ethylammonium nitrate based on pseudo-lattice theory

Cited by 83 publications

References 33 publications

Experimental measurement of the hygroscopic grade on eight imidazolium based ionic liquids

Experimental measurement of the hygroscopic grade on eight imidazolium based ionic liquids

Theoretical model for moisture adsorption on ionic liquids: A modified Brunauer–Emmet–Teller isotherm approach

Liquid Structure and the Ion-Ion Interactions of Ethylammonium Nitrate Ionic Liquid Studied by Large Angle X-Ray Scattering and Molecular Dynamics Simulations

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