A Differential Scanning Calorimetric (DSC) Study on Heavy Ozonized C₆₀ Fullerene

Abstract

The DSC (Differential Scanning Calorimetry) analysis of heavy ozonized C₆₀ fullerene (known also as “fullerene ozopolymer”), shows the exothermal decomposition of this compound with a peak at 158°C with a decomposition enthalpy ΔH_dec ≈ −322 kJ/mol and an activation energy for the decomposition E^# = 71 kJ/mol. These experimental facts confirm the secondary ozonide/peroxidic and polymeric nature of fullerene ozopolymer originally suggested by the infrared spectroscopy analysis and solid state ¹³C-NMR spectroscopy. It is also shown that the secondary ozonide group of fullerene ozopolymer can be reduced selectively by a treatment with hydrogen iodide.

Keywords:

• fullerene
• ozonation
• ozonide
• DSC
• HI
• reduction
• FTIR