4.6 Article

Crystal structure of the ionic liquid EtNH3NO3-Insights into the thermal phase behavior of protic ionic liquids

Journal

PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 46, Pages 16041-16046

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp43079g

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Funding

  1. U.S. Air Force Office of Scientific Research

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The crystal structure of the salt ethylammonium nitrate (EtNH3NO3) has been determined. EtNH3NO3 is one of the most widely studied protic ionic liquids (PILs)-ILs formed by proton transfer from a Bronsted acid to a Bronsted base. The structural features from the crystal structure, in concert with a Raman spectroscopic analysis of the ions, provide direct insight as to why EtNH3NO3 melts below ambient temperature, while other related salts (such as EtNH3Cl) do not.

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