The author of 《Molecular Mobility in a Set of Imidazolium-Based Ionic Liquids [bmim]+A- by the NMR-Relaxation Method》 were Bystrov, Sergei S.; Matveev, Vladimir V.; Chernyshev, Yurii S.; Balevicius, Vytautas; Chizhik, Vladimir I.. And the article was published in Journal of Physical Chemistry B in 2019. Application In Synthesis of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate The author mentioned the following in the article:
The detailed investigation of the local mobility in a set of dried imidazolium-based ionic liquids (1-butyl-3-methylimidazolium) in a wide temperature range and varying anions (BF4-, I-, Cl-, Br-, NO3-, TfO-) is presented. The measurements of temperature dependencies of the spin-lattice relaxation times of 1H and 13C nuclei are motivated by the need to obtain a fundamental characterization of mol. mobility of the substances under study, namely, to estimate the correlation times, τc, for the motion of individual mol. groups. In particular, it follows from obtained results that the mobility of the hydrocarbon “”tail”” is higher (smaller τc) than that of the imidazole ring, and this expected tendency is quantified. The effect of the influence of an anion type on the cation mobility is also analyzed. In the part of experimental materials, we found many familiar compounds, such as 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Application In Synthesis of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate)
3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. Application In Synthesis of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem