1Principal, M.I.T., Muzaffarpur, Bihar, India.
2Deptt. of Electronics and Communication Eng., MACET, Patna, Bihar, India.
3Deptt. of of Mechanical Engineering, Govt. Polytechnic, Muzaffarpur, Bihar, India.
4University Department of Physics, B.R.A. Bihar University, Muzaffarpur-842 001, Bihar, India-842001
We have theoretically studied that the impurity state lies in the middle of the gap of the azafullerence C59. If N is added to this the unpaired electron in an orbital with almost p-like symmetry and exhibits significant delocalization, while the corresonding spin density was found to oscillate with distance from the N atom. The measured isotropic Nand C hyperfine coupling constants of C59N by electron spin resonance, which showed that the spin density does not decrease monotonically with distance from N. The spin density due to the lone orbital was not well localized to the nearest C. In the case of dimer the N atoms were found to be trans to each other.
Impurity, azafullerence, unpaired, orbital, symmetry, delocalization, oscillate, isotropic, hyper coupling, spin resonance
