Journal ArticleDOI
Electron-nuclear double resonance from flavin radicals in liquid and polycrystalline phase and conjugated to protein.
L.E.Göran Eriksson,L.E.Göran Eriksson,James S. Hyde,James S. Hyde,Anders Ehrenberg,Anders Ehrenberg +5 more
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TLDR
A strong matrix ENDOR signal was observed, which decreased by about 40% when 2 H 2 O was used as solvent, which indicates that the active sites are inside the protein and should be correlated to the percent of exchangeable protons in the immediate environment of the active site.About:
This article is published in Biochimica et Biophysica Acta.The article was published on 1969-11-18. It has received 41 citations till now. The article focuses on the topics: Methyl group & Flavin group.read more
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Biological applications of electron spin resonance
John E. Wertz,James R. Bolton +1 more
TL;DR: The first publication on the use of ESR techniques in connection with biological systems appeared only nine years after the first demonstration of paramagnetic resonant absorption as discussed by the authors, which confirmed earlier ideas that free radicals are involved as intermediates in metabolic processes.
Journal ArticleDOI
The Chemical and Electronic Structure of the Neutral Flavin Radical as Revealed by Electron Spin Resonance Spectroscopy of Chemically and Isotopically Substituted Derivatives
TL;DR: Evidence is presented that two tautomeric forms of the neutral flavosemiquinone have to be considered which can be obtained in a pure form by suitable substitution of flavin derivatives.
Journal ArticleDOI
The very low-pressure pyrolysis of phenyl ethyl ether, phenyl allyl ether, and benzyl methyl ether and the enthalpy of formation of the phenoxy radical
TL;DR: In this paper, a value of the enthalpy of formation of the phenoxy radical in the gas phase, ΔH°,298K (ϕO·, g) = 11.4 ± 2.0 kcal/mol, has been obtained from the kinetic study of the unimolecular decompositions of phenyl ethyl ether, phenyl allyl ether and benzyl methyl ether at very low pressures.
Journal ArticleDOI
Ab Initio Study of the Mechanism for the Thermal Decomposition of the Phenoxy Radical
TL;DR: In this paper, a multistep RRKM calculation has been performed for the decomposition reaction of the phenoxy radical and the activation energy, at best G2M(rcc,MP2) level, is 8 kcal/mol higher than the value derived from experiment.
References
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Journal ArticleDOI
Use of glass electrodes to measure acidities in deuterium oxide1,2
Paul K. Glasoe,F. A. Long +1 more
TL;DR: In this article, a pH meter reading in D/sub 2/O solutions was 0-40 pH unit lower than in H/sub O solutions, attributed to the glass electrode.
Journal ArticleDOI
On the existence of spectrally distinct classes of flavoprotein semiquinones. A new method for the quantitative production of flavoprotein semiquinones.
Vincent Massey,Graham Palmer +1 more
Journal ArticleDOI
Radiation Damage in Organic Crystals. I. CH(COOH)2 in Malonic Acid1
TL;DR: In this paper, an analysis of the electron magnetic resonance of single crystals of malonic acid that were subjected to x-ray damage indicates that the principal long-lived paramagnetic species produced by the xray darnage is a pi-electron radical, that the unpaired electron is concentrated almost entirely on the alpha -carbon and that the spin density on the sigma -proton is negative.
Journal ArticleDOI
Endor of free radicals in solution
TL;DR: In this article, a nuclear double resonance has been performed on six free radicals in solution with polar and nonpolar solvents, and both neutral and ionic radicals investigated.
Related Papers (5)
Basicity, visible spectra, and electron spin resonance of flavosemiquinone anions.
On the existence of spectrally distinct classes of flavoprotein semiquinones. A new method for the quantitative production of flavoprotein semiquinones.
Vincent Massey,Graham Palmer +1 more