Electron paramagnetic resonance study of irradiated tetramethyl-4-piperidion

Aras E., Asik B., Caliskan B., Buyum M., Birey M.

RADIATION EFFECTS AND DEFECTS IN SOLIDS, cilt.159, sa.6, ss.353-358, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 159 Sayı: 6
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1080/10420150410001731820
  • Dergi Adı: RADIATION EFFECTS AND DEFECTS IN SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.353-358
  • Anahtar Kelimeler: EPR, tetramethyl-4-piperidion, C9H19NO, radicals, spin density, SPIN RESONANCE, RADICALS, PYRIDINE, SPECTRA, ESR
  • Ankara Üniversitesi Adresli: Hayır

Özet

The electron paramagnetic resonance of single crystals of tetramethyl-4-piperidion (TMP; C9H19NO) has been observed and analysed for different orientations of the crystal in the magnetic field, after being damaged at 300 K by gamma-irradiation. The crystals have been investigated between 100 and 450 K. The spectra were found to be temperature dependent. The irradiation of TMP by gamma-rays produces radicals at the nitrogen atoms in the molecule. The principal values of the hyperfine coupling tensor of the unpaired electron and the principal values of the g -tensor were determined. The results were found to be in good agreement with the existing literature data and theoretical predictions.