Hyperfine structure of Cr 5+  EPR spectra in X‐irradiated potassium halide crystals doped with CrO       4    2−     and Ca 2+ | Zendy

Akchalov Sh. | Zendy; Alybakov A. | Zendy; Zhanibekov M. | Zendy; Karashev T. K. | Zendy; Tojchiev N. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Hyperfine structure of Cr 5+ EPR spectra in X‐irradiated potassium halide crystals doped with CrO 4 2− and Ca 2+

Author(s) -

Akchalov Sh.,

Alybakov A.,

Zhanibekov M.,

Karashev T. K.,

Tojchiev N.

Publication year - 1987

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170220917

Subject(s) - hyperfine structure , electron paramagnetic resonance , chemistry , ion , halide , irradiation , crystallography , spectral line , analytical chemistry (journal) , potassium , oxygen , inorganic chemistry , nuclear magnetic resonance , atomic physics , physics , organic chemistry , astronomy , chromatography , nuclear physics

The hyperfine structure has been investigated in the EPR spectra of X‐irradiated KCl: CrO 4 2− , Ca 2+ and KBr: CrO 4 2− , Ca 2+ crystals. Preliminarily spectra were simplified by means of heating the crystals up to 400 K for KCl and 440 K for KBr, that destroys the less stable CrO 4 3−· V a +centers. It is ascertained, that principal directions of g ‐ and A ‐tensors do not coincide, and principal A ‐values are determined. Calculations, making use of the experimental meanings of g ‐ and A ‐tensor components, showed, that the degree of distortion of oxygen tetrahedra in CrO 4 3−· Ca 2+ · V a +centers is almost the same in both KCl and KBr crystals; besides, these calculations suggest the existence of a strong covalent bonding between the central Cr 5+ ion and four oxygen ligands in CrO 4 3−ions.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research