Structures of the Hexafluorocyclopropane, Octafluorocyclobutane, and Decafluorocyclopentane Radical Anions Probed by Experimental and Computational Studies of Anisotropic Electron Spin Resonance (ESR) Spectra

2007 ◽  
Vol 111 (2) ◽  
pp. 321-338 ◽  
Author(s):  
Masaru Shiotani ◽  
Anders Lund ◽  
Sten Lunell ◽  
Ffrancon Williams
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Esr Spectra ◽  
Radical Anions ◽  
Computational Studies ◽  
Spin Resonance

FREE RADICALS OF BIOLOGICAL INTEREST: PART II. ELECTRON SPIN RESONANCE (ESR) SPECTRA OF 2537 A IRRADIATED AMINO ACIDS

1967 ◽  
Vol 45 (12) ◽  
pp. 1831-1839 ◽  
Author(s):  
W. F. Forbes ◽  
P. D. Sullivan
Keyword(s):  
Amino Acids ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Hydrogen Abstraction ◽  
Esr Spectra ◽  
Side Chain ◽  
Biological Interest ◽  
Spin Resonance ◽  
Cyclohexadienyl Radical ◽  
Secondary Radical

Polycrystalline amino acids, when irradiated with 2537 Å light, afford a variety of electron spin resonance signals. These signals are generally stable at room temperature for relatively long periods of time. For a number of the spectra obtained, there is evidence that more than one radical species contributes to the observed spectra. The signals obtained frequently differ from those obtained on exposure to ionizing radiation. The postulated species formed can often be visualized as being formed by effective hydrogen abstraction from the alkyl-substituted tertiary carbon atom or from the —OH, —SH or —NH group contained in the side chain. For L-phenylalanine a secondary radical is obtained, which is ascribed to a cyclohexadienyl radical.

Ring strain effects. IV. Electron spin resonance study of the radical anions of a series of strained naphthalene hydrocarbons

1974 ◽  
Vol 39 (15) ◽  
pp. 2276-2281 ◽  
Author(s):  
Reuben D. Rieke ◽  
Stephen E. Bales ◽  
Claude F. Meares ◽  
Loretta I. Rieke ◽  
Charles M. Milliren
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Electron Spin Resonance Study ◽  
Radical Anions ◽  
Strain Effects ◽  
Ring Strain ◽  
Spin Resonance ◽  
Spin Resonance Study

Electron spin resonance observations of photochemically generated contact ammonium ion-pairs of fluoro-substituted ketones

1979 ◽  
Vol 57 (5) ◽  
pp. 600-602 ◽  
Author(s):  
K. S. Chen ◽  
T. Foster ◽  
J. K. S. Wan
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Ion Pairs ◽  
Esr Spectra ◽  
Ammonium Ion ◽  
Spin Resonance ◽  
Photochemical Systems

Contact radical ion-pairs of ammonium and fluoro-substituted ketones were generated in photochemical systems and their here-to-fore elusive esr spectra were characterized.

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