Abstract
Perdeuterofullerane, C60D36 was synthesized in toluene solution from DCl and Zn. The FT‐IR spectrum of C60D36 was compared with that of C60H36, and the C‐H stretching and bending shift due to deuteration was measured so that Ω H/ Ω D = 1.36. The thermal stability of C60D36 was studied under N2 by thermogravimetric and differential thermal analysis. It has been found that the substitution of hydrogen with deuterium in fullerene leads to a significant increase in thermal stability which was attributed to isotope effect. In particular, the onset of decomposition of C60H36 occurred at 412°C in comparison to 465°C measured on C60D36. The maximum decomposition rate of C60H36 was found at 501°C and was shifted to 549°C in C60D36. Perdeuterofullerane was found much more stable also to air oxidation. It oxidized slowly when exposed to air and some days were needed to reach a degree of oxidation, which was reached in 1 hour by C60H36.
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