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Related Concept Videos

π Electron Effects on Chemical Shift: Overview01:27

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An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0, resulting in...
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From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

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Published on: March 24, 2018

Electromagnetic field effects on binary dimethylimidazolium-based ionic liquid/water solutions.

Niall J English1, Damian A Mooney

  • 1The SEC Strategic Research Cluster and the Centre for Synthesis and Chemical Biology, School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland. niall.english@ucd.ie

Physical Chemistry Chemical Physics : PCCP
|October 16, 2009
PubMed
Summary
This summary is machine-generated.

Electromagnetic fields alter molecular behavior in ionic liquid-water mixtures. Dimethylimidazolium and triflate ions show significant changes in alignment and mobility due to low-frequency electromagnetic fields.

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Last Updated: Jun 19, 2026

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Published on: March 24, 2018

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10:37

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Published on: April 19, 2021

Area of Science:

  • Physical Chemistry
  • Computational Chemistry
  • Materials Science

Background:

  • Ionic liquids (ILs) are salts that are liquid at low temperatures.
  • Understanding ILs' response to external stimuli is crucial for their applications.
  • Non-thermal effects of electromagnetic fields on ILs are not fully understood.

Purpose of the Study:

  • Investigate non-thermal effects of electromagnetic fields (EMF) on ionic liquids.
  • Analyze the impact of EMF on dimethylimidazolium chloride and triflate salts and their water mixtures.
  • Determine the influence of varying frequencies on molecular dynamics.

Main Methods:

  • Non-equilibrium molecular dynamics (NEMD) simulations were employed.
  • Simulations covered electromagnetic field frequencies from microwave to far-infrared.
  • Analysis focused on dipole alignment and molecular mobility.

Main Results:

  • Significant alterations in dipole alignment and molecular mobility were observed.
  • Results differed notably between neat ILs and their binary mixtures with water.
  • Ionic liquid ions (dimethylimidazolium and triflate) responded more strongly to lower frequencies than water.

Conclusions:

  • Electromagnetic fields induce significant changes in the structure and dynamics of IL-water mixtures.
  • The response of IL ions is frequency-dependent and influenced by their intrinsic properties.
  • Findings provide insights into the interaction mechanisms between ILs and electromagnetic fields.