Electron spin resonance spectra of manganese(II)-doped powder samples of hexakis(pyridine N-oxide)mercury(II) percholate complexes

1974 ◽  
Vol 78 (1) ◽  
pp. 45-49 ◽  
Author(s):  
Gerald M. Woltermann ◽  
John R. Wasson
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Spin Resonance ◽  
Powder Samples

Magnetic study of the hexachlororhodate(IV) ion

1968 ◽  
Vol 46 (22) ◽  
pp. 3591-3594 ◽  
Author(s):  
A. D. Westland
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Coupling Parameter ◽  
Host Lattice ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Magnetic Susceptibilities ◽  
Spin Resonance ◽  
Powder Samples ◽  
Splitting Parameter

The magnetic susceptibilities and electron spin resonance spectra of solid solutions of cesium hexachlororhodate(IV) in a diamagnetic host lattice were examined over a range of temperatures. The Landé splitting parameter, g, was found to be 1.7545 ± 0.0005. This led to an orbital delocalization factor of 0.81 and a spin-orbit coupling parameter of 554 cm−1. The susceptibility measurements failed to reveal any superexchange in the lattice but the electron spin resonance spectra gave some evidence for such coupling. Powder samples only were examined and these exhibited no hyperfine structure.

scholarly journals Electron Spin Resonance of γ-Irradiated Taurine

1972 ◽  
Vol 50 (1) ◽  
pp. 43-49 ◽  
Author(s):  
G. Lind ◽  
R. Kewley
Keyword(s):  
Electron Spin Resonance ◽  
Hyperfine Interaction ◽  
Electron Spin ◽  
Unpaired Electron ◽  
Hyperfine Coupling ◽  
The Third ◽  
Coupling Tensor ◽  
Spin Resonance ◽  
Powder Samples ◽  
G Value

The 9.5 GHz electron spin resonance (e.s.r.) spectra of single crystal and powder samples of γ-irradiated taurine, [Formula: see text], have been recorded. Overlapping spectra from three distinct radicals are present. The first of these is the species SO3− with an isotropic g-value of 2.0035 and a 33S hyperfine coupling tensor with principal values 135.2, 99.2, and 97.9 G. The second radical is a π-electron species with the unpaired electron mainly on carbon and exhibiting hyperfine interaction from at least four protons, probably [Formula: see text] and with principal g-values 2.0021, 2.0027, and 2.0034. The third radical has principal g-values 2.0024, 2.0056, and 2.0097 and principal values of the 33S hyperfine tensor of 49.6, 9.1, and 1.2 G. The proposed structure for this radical is [Formula: see text]

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