Absolute Rate Constants for the β-Scission and Hydrogen Abstraction Reactions of thetert-Butoxyl Radical and for Several Radical Rearrangements:  Evaluating Delayed Radical Formations by Time-Resolved Electron Spin Resonance

1999 ◽  
Vol 121 (32) ◽  
pp. 7381-7388 ◽  
Author(s):  
Matthias Weber ◽  
Hanns Fischer
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Rate Constants ◽  
Hydrogen Abstraction ◽  
Absolute Rate ◽  
Time Resolved ◽  
Spin Resonance ◽  
Radical Rearrangements

The Self-Reaction of sec-Alkylperoxy Radicals: A Kinetic Electron Spin Resonance Study

1972 ◽  
Vol 50 (14) ◽  
pp. 2374-2377 ◽  
Author(s):  
J. A. Howard ◽  
J. E. Bennett
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Rate Constants ◽  
The Self ◽  
Electron Spin Resonance Study ◽  
Absolute Rate ◽  
Arrhenius Plots ◽  
Spin Resonance ◽  
Alkylperoxy Radicals ◽  
Spin Resonance Study

Absolute rate constants for the self-reaction of cyclopentylperoxy, cyclopentenylperoxy, and sec-butylperoxyradicals have been determined over a 125 °C temperature range. Arrhenius plots derived from these rate constants suggest that the mechanism for this reaction is more complex than the currently accepted Russell mechanism.

Size, Hydration, and Shape of SDS/Heptane Micelles Investigated by Time-Resolved Fluorescence Quenching and Electron Spin Resonance

Langmuir ◽  
2001 ◽  
Vol 17 (22) ◽  
pp. 6765-6770 ◽  
Author(s):  
Radha Ranganathan ◽  
Miroslav Peric ◽  
Rosa Medina ◽  
Ulises Garcia ◽  
Barney L. Bales ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Fluorescence Quenching ◽  
Electron Spin ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
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.

Reactions of 1-Hydroxy-1-methylethyl Radicals with NO2-:  Time-Resolved Electron Spin Resonance

2006 ◽  
Vol 110 (38) ◽  
pp. 11046-11052 ◽  
Author(s):  
Piotr Filipiak ◽  
Donald M. Camaioni ◽  
Richard W. Fessenden ◽  
Ian Carmichael ◽  
Gordon L. Hug
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Time Resolved ◽  
Spin Resonance
Sign in / Sign up

Export Citation Format

Share Document