Category: imidazoles-derivativesIn 2019 ,《Structural Anomalies in Binary Mixtures of Ionic Liquid [Bmim]BF4 with Water Studied by EPR》 was published in Journal of Physical Chemistry B. The article was written by Ivanov, Mikhail Yu.; Prikhod’ko, Sergey A.; Adonin, Nicolay Yu.; Fedin, Matvey V.. The article contains the following contents:
Ionic liquids (ILs) show a variety of unusual and intriguing properties on a mol. level. Recently, a new type of structural anomalies occurring in neat ILs near their glass transition temperatures (Tg) has been found. In particular, the coexistence of two types of IL environments was observed, one of which progressively suppresses the mol. mobility upon temperature increase within ∼(Tg-60 K) and Tg. In order to clarify the nature of these anomalies, their general characteristics and potential for applications, in this work we investigated the mol. mobility in binary mixtures of IL [Bmim]BF4 with water using ESR spectroscopy and spin probes (stable nitroxides TEMPO-D18, (2,2,6,6-tetramethylpiperidin-1-yl)oxyl, and 14-carbamoyl-7-azadispiro[5.1.5.2]pentadeca-14-ene-7-oxyl). In a series of such mixtures with water content x(H2O) = 0.2-50 wt% we detected similar anomalies to those found in neat IL (x = 0). For x < 2.5 wt% the differences in manifestations of structural anomalies are negligible compared to neat ILs. In the range 2.5 < x < 5 wt% an abrupt partial suppression of anomaly is observed, but further increase of the water content up to x = 50 wt% has no impact on anomaly since, most plausibly, it leads only to the growth of the water-rich domains. Consequently, the observed structural anomalies are rather robust against the presence of water in ILs, which is beneficial for their potential applications. In addition to this study using 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate, there are many other studies that have used 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Category: imidazoles-derivatives) was used in this study.
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. Category: imidazoles-derivatives
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem