Electron Spin Resonance Spectra of Some Free Radical in pure C_60 and Mixture of C_60/C_70

摘要

The character of some free radical in pure C_60 and a mixture of C_60 and C_70 was studied by means of ESR spectroscopy. The experiment results show that the ESR signals of the free ridical in C_60 or the mixture of C_60 and C_70 are dependent on oxygen and the ratio between C_60 and C-70. The radical in pure C_60 and the mixture of C_60 and C_70 possess the characteristic of carbon-centered radi- cals.