An EPR study of Cu<SUP>2+</SUP> doped [Na(Hmal)(H<sub>2</sub>O)<sub>5</sub>] single crystals

Karabulut B., Duzgun F.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, cilt.75, sa.4, ss.1200-1202, 2010 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75 Sayı: 4
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.saa.2009.11.036
  • Dergi Adı: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1200-1202
  • Anahtar Kelimeler: EPR, Spectroscopy, Spin-Hamiltonian parameters, Doping, ELECTRON-PARAMAGNETIC-RESONANCE, OPTICAL-ABSORPTION, IONS, VO2+, ESR
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The magnetic environments of Cu2+ doped Na+ complex have been identified by electron paramagnetic resonance (EPR) technique. The angular variation of the EPR spectra has shown that two different Cu2+ complexes are located in different chemical environments, and each environment contains one magnetic Cu2+ site occupying substantial positions in the lattice and showing very high angular dependence. The principal g, and the hyperfine structure parameter (A) values of two sets of Cu2+ complex groups are determined. The covalency parameter, mixing coefficients and Fermi-contact term of the complex are obtained, and the ground state wave function of the Cu2+ ion in the lattice has been constructed. (C) 2009 Elsevier B.V. All rights reserved.