One-electron reduction of di-imidosulphur compounds, S(NR)2, and some complexes of Group 6A metal carbonyl derivatives containing S(NR)2 ligands: studies of the radical products by electron spin resonance spectroscopy

1980 ◽  
pp. 880 ◽  
Author(s):  
John A. Hunter ◽  
Boyd King ◽  
W. Edward Lindsell ◽  
Margaret A. Neish
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Metal Carbonyl ◽  
Electron Spin Resonance Spectroscopy ◽  
Resonance Spectroscopy ◽  
Carbonyl Derivatives ◽  
Spin Resonance ◽  
Electron Reduction

scholarly journals The reactions of nitrosoarenes with cationic cyclohexadienyl complexes of iron tricarbonyl: an ESR study

1989 ◽  
Vol 67 (11) ◽  
pp. 1868-1877 ◽  
Author(s):  
Lijuan Li ◽  
Richard E. Perrier ◽  
Donald R. Eaton ◽  
Michael J. McGlinchey
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Time Scale ◽  
Metal Carbonyl ◽  
Electron Spin Resonance Spectroscopy ◽  
Resonance Spectroscopy ◽  
Initial Attack ◽  
Ring Rotation ◽  
Spin Resonance ◽  
Central Carbon

The reactions of nitrosoarenes with the (cyclohexadienyl)Fe(CO)3 cation have been investigated by using electron spin resonance spectroscopy. The radicals produced are nitroxides of the type (OC)3Fe(C6H7)(Ar)N—O• but, in some cases, disproportionation and loss of the metal carbonyl fragment leads to the corresponding C6H5(Ar)N—O• radical. With bulky nitrosoarenes, such as C6Me5NO, isomers are observed in which the aryl ring rotation is slow on the ESR time scale. The analogous reactions with the cyclohexadienyl cation derived from the B ring of (ergosteryl acetate)Fe(CO)3 lead to initial attack not at one of the termini of the delocalized system but rather at the central carbon, i.e., at C-7. Subsequent hydrogen migration leads to the (5,7-diene)Fe(CO)3 complex bearing the arylnitroxide at the 7-position. The mechanisms of these reactions are discussed. Keywords: nitrosoarenes, iron cations, ESR.

Identification of irradiated rice noodles by electron spin resonance spectroscopy

2012 ◽  
Vol 47 (8) ◽  
pp. 640-643 ◽  
Author(s):  
Wanwisa Sudprasert ◽  
Sahakan Monthonwattana ◽  
Arag Vitittheeranon
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Electron Spin Resonance Spectroscopy ◽  
Resonance Spectroscopy ◽  
Spin Resonance
Sign in / Sign up

Export Citation Format

Share Document