Heat capacities of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C 6 mim][NTf 2 ] have been measured with a new adiabatic calorimeter in a range of temperatures of (5 to 370) K. The substance was found to form glass with T g ) 184.3 K and ∆ gl l C s,m ) (170.7 ( 2.8) J‚K -1 ‚mol -1 . At different modes of crystallization [C 6 mim][NTf 2 ] forms at least three crystals, the heat capacities of which differ up to 2 % in the temperature range of (220 to 250) K but coincide within 0.1 % in the temperature range of (80 to 220) K. Triple-point temperature for all the crystals is T 0 ) (272.03 ( 0.01) K, but the enthalpies of fusion are somewhat different. Thermodynamic properties for [C 6 mim][NTf 2 ] are calculated based on the obtained data.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.