The structure of amidyl radicals. Evidence for the .pi.-electronic ground state and for twist about the acyl-nitrogen bond by electron paramagnetic resonance spectroscopy

1981 ◽  
Vol 103 (3) ◽  
pp. 624-628 ◽  
Author(s):  
R. Sutcliffe ◽  
D. Griller ◽  
J. Lessard ◽  
K. U. Ingold
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Ground State ◽  
Electron Paramagnetic Resonance Spectroscopy ◽  
Electronic Ground State ◽  
Resonance Spectroscopy ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic ◽  
Electronic Ground ◽  
Nitrogen Bond

Influence of the Nature of the Ligands on the Electronic Ground State of Organouranium(V) Compounds, Studied by Electron Paramagnetic Resonance

1997 ◽  
Vol 36 (25) ◽  
pp. 5931-5936 ◽  
Author(s):  
Didier Gourier ◽  
Daniel Caurant ◽  
Jean Claude Berthet ◽  
Christophe Boisson ◽  
Michel Ephritikhine
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Ground State ◽  
Electronic Ground State ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic ◽  
Electronic Ground

Quand la résonance paramagnétique électronique de l'uranium(IV) est-elle observable?

1980 ◽  
Vol 58 (22) ◽  
pp. 2377-2379 ◽  
Author(s):  
Edgar Soulié ◽  
Gérard Folcher ◽  
Basil Kanellakopulos
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Magnetic Susceptibility ◽  
Ground State ◽  
Excited Level ◽  
Electronic Ground State ◽  
Epr Spectra ◽  
Paramagnetic Resonance ◽  
X Band ◽  
Electron Paramagnetic ◽  
Electronic Ground

For non-Kramers ions, the electronic ground state may be nondegenerate. Then, if the first electronic excited level lies more than 0.3 cm−1 above the ground state, no electron paramagnetic resonance can occur between them in the X band. This is the case whenever a temperature-independent paramagnetism is observed in the magnetic susceptibility of the powder. An example of this situation, conflicting with published epr spectra, is provided by U(cupferron)4.

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