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Electron paramagnetic resonance; organic radical; spin Hamiltonian; tris(glycine) calcium dibromide

Tris(glycine) calcium(II) dibromide single crystal has been irradiated with aγ-source to produce free radicals and the irradiated sample has been subjected toepr studies. The observed spectra reveal that an NH₄ radical is formed by rupturing glycine molecule due to irradiation. The unpaired electron is localized on the C-N bond. The proton hyperfine interaction on the unpaired spin shows orthorhombic symmetry and the spectroscopic splitting factor remains isotropic.

P Subramanian¹ N Hariharan^{1 2} J Sobhanadri^{1 3}

1. School of Physics, Madurai Kamaraj University, Madurai - 625 021, India
2. Department of Physical Science, Federal University of Lagos, Abeokuta, PMB 2240 Ogun State, Nigeria
3. Department of Physics, Indian Institute of Technology, Madras - 600 036, India

Published

April 1986

Manuscript received

19 August 1985

Manuscript revised

6 December 1985