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Tuesday, July 21, 2020 | History

2 edition of Electron spin resonance of trapped electrons in irradiated sodium nitroprusside found in the catalog.

Electron spin resonance of trapped electrons in irradiated sodium nitroprusside

J. Danon

Electron spin resonance of trapped electrons in irradiated sodium nitroprusside

by J. Danon

  • 316 Want to read
  • 39 Currently reading

Published by Centro Brasileiro de Pesquisas Físicas in Rio de Janeiro .
Written in English

    Subjects:
  • Sodium nitroferricyanide -- Spectra.,
  • Electron paramagnetic resonance spectroscopy.

  • Edition Notes

    Includes bibliographical references.

    Statementby J. Danon, R. P. A. Muniz, and H. Panepucci.
    SeriesNotas de física ; v. 11, no. 19
    ContributionsMuniz, R. P. A., joint author., Panepucci, H., joint author.
    Classifications
    LC ClassificationsQC464.S637 D36
    The Physical Object
    Paginationp. 339-342 :
    Number of Pages342
    ID Numbers
    Open LibraryOL4473511M
    LC Control Number79300768

      Miyagawa I and Itoh K Electron spin resonance of irradiated single crystals of alanine: hindered rotation of the methyl group in a free radical J. Chem. Phys. 36 Crossref Google Scholar Miyagawa I, Kurita Y and Gordy W Electron spin resonance of an irradiated single crystal of N-acetyl glycine J. Chem. Phys. 33 Electron paramagnetic resonance (EPR), also called electron-spin resonance (ESR), selective absorption of weak radio-frequency electromagnetic radiation (in the microwave region) by unpaired electrons in the atomic structure of certain materials that simultaneously are subjected to a constant, strong magnetic unpaired electrons, because of their spin, behave like tiny magnets.

    The electron spin resonance of an X-ray irradiated single crystal of diketopiperazine has been measured at 9 Gc/sec for various orientations of the crystal in the static magnetic field. From an analysis of the hyperfine structure observed we have been able to calculate the components of the hyperfine interaction tensor for the radical produced. Electron spin resonance The resonance condition Energy absorption trapped electrons Acid aqueous glasses Radicals trapped during polymerization The effects of radiation on polymers Reactions of irradiated polymers with gases. xii CONTENTS Carbons Radical reactions in solid matrices

    Electron Spin Two types of experimental evidence which arose in the s suggested an additional property of the electron. One was the closely spaced splitting of the hydrogen spectral lines, called fine other was the Stern-Gerlach experiment which showed in that a beam of silver atoms directed through an inhomogeneous magnetic field would be forced into two beams. an instrument used in gemology for nondestructive analysis of crystalline impurities by resonance occurring, when electrons, which are undergoing transitions between energy levels in a substance, are irradiated with electromagnetic energy of a proper frequency to .


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Electron spin resonance of trapped electrons in irradiated sodium nitroprusside by J. Danon Download PDF EPUB FB2

Exposure of anhydrous sodium nitroprusside to 60 Co γ-rays at 77 K resulted in e.s.r. spectra of two had g ∥ = 2 and g ⊥ = 2 at 77 K, with no resolved coupling to 14 N. By comparison with data for other d 5 pentacyanonitrosyls, it is concluded that this species is the pentacyanonitrosylferrate(III).The other species had g and 14 N hyperfine tensors characteristic.

Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications for the Publisher/Society in context. Erratum: Electron Spin Resonance of Trapped Electrons in Irradiated Sodium Nitroprusside J.

Cited by: Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications for the Publisher/Society in context. Electron Spin Resonance of Trapped Electrons in Irradiated Sodium Nitroprusside J. Chem.

Phys. 41, (); Cited by: Electron spin resonance dating, or ESR dating, is a technique used to date newly formed materials which radiocarbon dating cannot, like carbonates, tooth enamel, or materials that have been previously heated like igneous on spin resonance dating was first introduced to the science community inwhen Motoji Ikeya dated a speleothem in Akiyoshi Cave, Japan.

adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A.

ELECTRON SPIN RESONANCE STUDIES ONMELANIN M. BLOIS, A. ZAHLAN, and J. MALING Fromthe BiophysicsLaboratory, Stanford University, Stanford ABSTRACT Electron spin resonance (e.s.r.) observations ofsquidmelaninhave been conducted over the temperature range °Kto °K, and the effect of various chemical treatments of the melanin upon the e.s.r.

spectrum. reported in reduced sodium nitroprusside. 5, were not. 34 Electron Spin Resonance of Trapped Electrons in Irradiated Sodium Nitroprusside We present electron-spin-resonance. Electron spin resonance spectra have been recorded for γ-irradiated hydrated and anhydrous sodium paramagnetic species in the anhydrous salt, and in polarographically reduced sodium nitroprusside in dimethylformamide is identified as the ion [Fe(CN) 5 NO] 3– having linear Fe–N–O bonds, whereas the species in the hydrated salt is possibly [Fe(CN) 4 (CNOH)(NO)] 2.

Fig. 2 shows a typical majority-carrier DLTS spectrum of proton-implanted n-type silicon at a dose of 10 13 cm − three vacancy related defects E(), E() and E() and the hydrogen-related defect E() are clearly resolved. For temperatures above K, the Q-factor is no longer capacitance transient is non-exponential, leading to a disturbed DLTS spectrum as.

Electron Spin Resonance Electron Spin Resonance Maki, A H Electron spin resonance, as ofshows no signs of fading as a useful research technique. The ESR literature of is decidedly voluminous, and the author has had to limit the extent of this review in order to keep it to manageable size.

Initiation process of radiation-induced ionic polymerization as studied by electron spin resonance., DOI: /BFb Kozo Tsuji, Ffrancon Williams. Coincidence of times for thermal decay of trapped electrons in γ-irradiated 3-methylpentane at 77°K by electron spin resonance and optical observations.

Exposure of rat liver to sodium nitroprusside (SNP) by ex vivo and in situ perfusion induced a composite X-band electron spin resonance (ESR) spectrum of the isolated liver characteristic of a MNIC and DNIC. On storage of the tissue, the MNIC signal disappeared and the DNIC signal intensity increased.

It is shown that γ rays act on glycine to give the free radical NH 3 +-ĊH-CO 2 − which remains trapped in the solid. Electron spin resonance spectra from an irradiated single glycine crystal show marked anisotropy and it is deduced that the radicals are precisely oriented in the crystal lattice.

Trapped Electrons in Irradiated. Sodium. Nitroprusside [J. Chern. Phys. 41, Electron Spin Resonance of Trapped Electrons in Irradiated Sodium Nitroprusside. Article. Electron spin resonance and nuclear magnetic resonance of sodium macrostructures in strongly irradiated NaCl–K crystals: Manifestation of quasi-one-dimensional behavior of electrons F.

Cherkasov,a) R. Mustafin, and S. L’vov Kazan Physicotechnical Institute, Russian Academy of Sciences, Kazan, Russia G. Denisenko. Electron Spin Resonance When the molecules of a solid exhibit paramagnetism as a result of unpaired electron spins, transitions can be induced between spin states by applying a magnetic field and then supplying electromagnetic energy, usually in the microwave range of frequencies.

The resulting absorption spectra are described as electron spin resonance (ESR) or electron paramagnetic resonance. Abstract. Data from an investigation of electron spin resonance and nuclear magnetic resonance of NaCl-K (∼1 mole%) crystals strongly irradiated with electrons imply the observation of a metal-insulator transition with decreasing temperature and the manifestation of quasi-one-dimensional electron motion in sodium macrostructures.

Erratum: Electron Spin Resonance of Trapped Electrons in Irradiated Sodium Nitroprusside [J. Chern. Phys. 41, ()] J.

DANON, R. MUNIZ, AND H. PANEPPUCI THE deviation of linearity mentioned in. the last line of the fourth paragraph. @article{osti_, title = {Mechanism of spin diffusion in electron spin resonance spectra of trapped electrons in aqueous glasses.

Electron--Electron double resonance studies. gamma. -rays]}, author = {Lin, D P and Kevan, L}, abstractNote = {Electron--electron double resonance (ELDOR) has been used to test the validity of the noninteracting spin packet model for inhomogeneously.

The dipolar interaction between an unpaired electron in a dXY orbital and a ligand nucleus has been described and applied to the [Cr(CN)5NO]3- case. Estimates of the isotropic and anisotropic spin resonance parameters have been made for unpaired electrons .ELECTRON SPIN RESONANCE Steven Plimpton BMB 2/24/ Murine Skin Fibroblasts under UVB Irradiation Masaki H., Atsumi T.

and Sakurai H. 3/7/11 13 Bridge to Dynamic Nuclear Polarization • Defined as the transfer of spin polarization from orbiting electrons to nuclei.Abstract. Electron spin resonance signals from radicals of different types have been observed in γ-irradiated 5-chlorouridine.

The strongest absorption, a broad resonance with g values ranging from tomust arise from spin density concentrated on chlorine, probably from trapped atoms.

However, hyperfine structure expected from Cl nuclei could not be resolved, evidently because of the.