Abstract
The present paper presents the thermal behaviour of methyl-bambus[6]uril in its anion-free and chlorine-included form. Our study was based on thermogravimetry associated to Fourier-transform infrared spectroscopy and differential scanning calorimetry. The compounds decompose after $$300\,^{\circ }\hbox {C}$$ and both forms of this macrocycle, contain four hydration water molecules. The main decomposition products are $$\hbox {H}_2\hbox {O}$$ , $$\hbox {CO}_2$$ , $$\hbox {NH}_3$$ and isocyanic acid as we could detect by FTIR spectroscopy. Finally, we verified that the caviplex loses its chloride ion after $$270\ ^{\circ }\hbox {C}$$ and may produce the anion-free macrocyle upon heating.
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