An EPR study of Cu2+ doped [Na(Hmal)(H2O)(5)] single crystals

Karabulut B., Duzgun F.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, vol.75, no.4, pp.1200-1202, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 75 Issue: 4
  • Publication Date: 2010
  • Doi Number: 10.1016/j.saa.2009.11.036
  • Journal Name: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1200-1202
  • Keywords: EPR, Spectroscopy, Spin-Hamiltonian parameters, Doping, ELECTRON-PARAMAGNETIC-RESONANCE, OPTICAL-ABSORPTION, IONS, VO2+, ESR
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

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.