Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

The hydrogen bonding analysis of water-1-methylimidazole mixtures studied by dielectric relaxation spectroscopy

Jia, G.-Z.[Guo-Zhu], Liu, J.-C.[Jian-Chuan], Yang, X.-Q.[Xiao-Qing]
Fluid Phase Equilib. 2014, 375, 269-274
ABSTRACT
The dielectric constant of 1-MeIm + water mixtures with entire mixture range has been determined in the frequency range 20MHz to 20GHz at 298K using the dielectric relaxation spectroscopy (DRS) method. Mixture dielectric behavior is well described by the Cole-Cole model. We estimated H-bonds effect for molecular interactions by the excess dielectric model. The type of dipolar orders by which depends on the extent of substitution and cooperative interaction of 1-MeIm + water cluster are also calculated by Luzar model and extended Froehlich theory. We get different aspect of the interaction of molecules, which can help us have a deeper understanding of relaxation acts.
Compounds
# Formula Name
1 C4H6N2 1-methylimidazole
2 H2O water
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Relative permittivity at zero frequency ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Parallel plate capacitor
  • 1
  • POMD
  • 2
  • Relative permittivity at zero frequency ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Parallel plate capacitor
  • 1
  • POMD
  • 1
  • 2
  • Relative permittivity at zero frequency ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Parallel plate capacitor
  • 11