The as-synthesised [RCC1-IM][NTf2]6 was isolated as an offwhite powder, and found to be amorphous by powder X-ray diffraction (PXRD) (Fig. ). Thermogravimetric analysis (TGA) was performed to evaluate its thermal stability compared to both RCC1 and [Ald-IM][NTf2], with a featureless trace identified up to the decomposition temperatures (Td) in excess of 300 °C (Fig. ). Differential scanning calorimetry (DSC) was subsequently carried out, heating the samples to below their Td before cooling to room temperature, and then reheating once more. [Ald-IM][NTf2] exhibited a relatively sharp endotherm, which correlated with melting point of 58 °C (Fig. ). [RCC1-IM][NTf2]6, on the other hand, exhibited a broad endotherm (Fig. ) over the °C temperature range, with a reversible glass transition observed at ~40 °C. The broad endotherm of [RCC1-IM][NTf2]6 was unambiguously identified as a melting transition, Tm, by monitoring the melting range using melting point apparatus (Fig. ). As observed previously, we believe the broad melting range is due to the amorphous nature of the assynthesised material. While [RCC1-IM][NTf2]6 was not a liquid at room temperature, the system can be classed as an ionic liquid, according to the definition of ionic liquids being organic salts that have a melting point below 100 °C. In relation to the formed glassy-material recovered at room temperature after melt-quenching, as shown in the optical image (Fig. ), PXRD confirmed that the material remained amorphous (Fig. ). Subsequent analysis by mass spectrometry also confirmed the presence of intact [RCC1-IM][NTf2]6 (Fig. ), ruling out the possibility of bond breaking without mass loss over the DSC temperature range, and confirming the formation of a molecular amorphous glass. The glassy material could also be processed back into its amorphous powder by soaking in dichloromethane and drying under a vacuum, demonstrating a solution processability advantage over framework-based glasses. In line with previous terminology, the amorphous solid and amorphous glass formed here are referred to as a