Phase behaviour and heat capacities of selected 1-ethyl-3-methylimidazolium-based ionic liquids

0537800 - FZÚ 2021 RIV GB eng J - Journal Article
Štejfa, V. - Rohlíček, Jan - Červinka, C.
Phase behaviour and heat capacities of selected 1-ethyl-3-methylimidazolium-based ionic liquids.
Journal of Chemical Thermodynamics. Roč. 142, Jan (2020), s. 1-10, č. článku 106020. ISSN 0021-9614. E-ISSN 1096-3626
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : ionic liquids * heat capacity * phase behaviour * fusion properties * crystallography
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.178, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.jct.2019.106020

Eight common ionic liquids based on the 1-ethyl-3-methylimidazolium cation, [C1C2Im], which are coupled with simple organic or inorganic anions are selected in this work and their phase behaviour, heat capacities, and crystal structures are studied. Special attention is paid to drying of the samples and evaluation of the effect of water content on the melting temperature. Resulting melting temperatures, fusion enthalpies, and heat capacities are compared to the available literature data. For the compounds, which melt above the room temperature, crystal structures were determined using the X-ray powder diffraction experiments to identify the studied crystalline phases. Moreover, a crystal structure for the dimethyl phosphate salt [C1C2Im],[Me2PO4] is reported for the first time.

Permanent Link: http://hdl.handle.net/11104/0315637