Radiative and interelectronic-interaction corrections to the hyperfine splitting in highly charged B-like ions

The interelectronic-interaction corrections of the second order in 1/Z to the ground-state hyperfine splitting in lithiumlike ions are evaluated. The calculations are performed by using the relativistic configuration-interaction method and perturbation theory. In addition, the nuclear magnetization distribution effect on the interelectronic-interaction correction of the first order in 1/Z is evaluated within the single-particle nuclear model. The calculations provide an improvement in the theoretical predictions for the hyperfine splitting in lithiumlike ions. PACS Nos.: 31.30Gs, 31.30Jv

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ESR study of the structure and bonding situation in thiocyanatocopper(II) complexes with imidazole derivatives

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19880056 ◽

1988 ◽

Vol 53 (1) ◽

pp. 56-60

Author(s):

Anna Mašlejová ◽

Reinhard Kirmse

Keyword(s):

Unpaired Electron ◽

Hyperfine Splitting ◽

Esr Spectra ◽

Ligand Field ◽

Imidazole Derivatives ◽

Bonding Parameters ◽

Monomeric Complex ◽

Structure And Bonding ◽

Frozen Solutions ◽

Planar Symmetry

ESR spectra of thianatocopper(II) complexes with imidazole derivatives were studied in ethanolic solutions at 295 and 123 K. Axialsymmetric spectra, attributed to the monomeric complex units, were obtained for the frozen solutions. The bonding parameters were interpreted by using calculated g, Cu-hyperfine, and 14N-ligand hyperfine splitting values. The Cu-N bond parameters indicate a considerable delocalization of the unpaired electron. The values of the isotropic Cu-hyperfine splitting suggest that the deviations from the planar symmetry of the CuN4 units are due to tetrahedral perturbation of the ligand field.

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Association of radical anion with alkali cations. IV. ESR study of the 4-nitrobenzophenone radical anion

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19800369 ◽

1980 ◽

Vol 45 (2) ◽

pp. 369-375 ◽

Cited By ~ 2

Author(s):

Stanislav Miertuš ◽

Ondrej Kyseľ

Keyword(s):

Hyperfine Splitting ◽

Radical Anion ◽

Esr Spectroscopy ◽

Supporting Electrolyte ◽

Esr Spectra ◽

Proton Donor ◽

Alkali Cations

The 4-nitrobenzophenone radical anion prepared by electrolysis was studied by ESR spectroscopy. On the basis of the interpretation of ESR spectra, the conformation of this system was estimated. The effect of the concentration of supporting electrolyte and of the presence of a proton-donor agent (C2H5OH) was examined. It is assumed that changes in hyperfine splitting constants are caused by association.

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