1,3-Dimethylimidazolium nitrate

1,3-Dimethylimidazolium nitrate ([DMIM][NO3]) is a solvent within the imidazole-based class of ionic liquids (ILs). 1,3-Dimethylimidazolium is a five-membered ring aromatic cation composed of two nitrogen atoms and three carbon atoms, with methyl groups substituted at positions 1 and 3 of the nitrogen atoms, respectively. The nitrate anion is a poly-ion species characterized by one nitrogen atom and three oxygen atoms.

1,3-Dimethylimidazolium nitrate
Identifiers
3D model (JSmol)
  • InChI=1S/C5H9N2.NO3/c1-6-3-4-7(2)5-6;2-1(3)4/h3-5H,1-2H3;/q+1;-1
    Key: NNZONDWZDSZNGB-UHFFFAOYSA-N
  • CN1C=C[N+](=C1)C.[N+](=O)([O-])[O-]
Properties
C5H9N3O3
Molar mass159.145 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Thermodynamic properties of this compound are not available as it exhibits fast and often uncontrollable chemical decomposition, only limited data such as its melting and decomposition temperatures.[1] Differential scanning calorimetry and thermogravimetric analysis has been performed to understand thermal decomposition kinetics.[2] Computational methods have been used to probe some of the interactions with water.[3]

References