scholarly journals Rotational motion of yeast cytochrome oxidase in phosphatidylcholine complexes studied by saturation-transfer electron spin resonance

Biochemistry ◽  
1989 ◽  
Vol 28 (13) ◽  
pp. 5634-5643 ◽  
Author(s):  
Piotr Fajer ◽  
Peter F. Knowles ◽  
Derek Marsh
Keyword(s):  
Electron Spin Resonance ◽  
Cytochrome Oxidase ◽  
Electron Spin ◽  
Rotational Motion ◽  
Saturation Transfer ◽  
Spin Resonance

ELECTRON SPIN RESONANCE SPECTRA OF 15N-CENTERED RADICALS AT LOW TEMPERATURES: I. THE RADICAL NH3+ TRAPPED IN NH4ClO4

1965 ◽  
Vol 43 (5) ◽  
pp. 1012-1016 ◽  
Author(s):  
M. Fujimoto ◽  
J. R. Morton
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin Resonance Spectrum ◽  
Ammonium Perchlorate ◽  
Electron Spin ◽  
Rotational Motion ◽  
Low Temperatures ◽  
Resonance Spectrum ◽  
Radical Theory ◽  
Spin Resonance

The electron spin resonance spectrum of NH3+ trapped in ammonium perchlorate (95% 15N) was examined at 300 °K, 77 °K, and 4 °K. The spectra are interpreted in terms of π-radical theory, and demonstrate the different stages in the freezing-out of the rotational motion of the ion.

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