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 mass 159.145 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 edit

  1. ^ Wang, R.; Gao, H.; Ye, C.; Twamley, B.; Shreeve, J. (2007). "Heterocyclic-based nitrodicyanomethanide and Dinitrocyanomethanide salts: A family of new energetic ionic liquids". Inorganic Chemistry. 46 (3). American Chemical Society: 932–938. doi:10.1021/ic0619198. PMID 17257037. Retrieved February 3, 2024.
  2. ^ Liu, S.-H.; Zhang, B. (2019). "Using thermal analysis technology to assess the thermal stability of 1,3-dimethylimidazolium nitrate". Process Safety and Environmental Protection. 124. Elsevier: 181–186. doi:10.1016/j.psep.2019.02.012. S2CID 104408812. Retrieved February 3, 2024.
  3. ^ Solovyova, I. V.; Yang, S.; Starovoytov, O. N. (2023). "Molecular dynamics simulation studies of 1, 3-dimethylimidazolium nitrate ionic liquid with water". Journal of Chemical Physics. 158 (8). AIP Publishing: 084505. arXiv:2206.06162. Bibcode:2023JChPh.158h4505S. doi:10.1063/5.0134465. PMID 36859108. S2CID 265996080. Retrieved February 3, 2024.