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Electron Spin Resonance (ESR) Spectroscopy [PDF]

, 1992
Electron spin resonance (ESR) or electron paramagnetic resonance (EPR) spectroscopy has developed at an outstanding pace since its discovery in 1945 (Zavoiskii 1945), so that at present the technique is very well understood in its many aspects. In wood chemistry, ESR has become an essential tool for the study of the structure and dynamics of molecular ...
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Computer control of electron spin resonance spectroscopy

Journal of Magnetic Resonance (1969), 1975
Abstract A laboratory computer interface with an electron spin resonance (ESR) spectrometer is reported, which permits operator control of the magnetic field through the computer. Two programs are described. In the first, the field is stepped and checked for stability at preset increments before data from a signal channel and a reference channel are ...
Harry R. Crowe, Richard S. Carpenter, Ira B. Goldberg   +2 more
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Reactive Oxygen Species in a Non-thermal Plasma Microjet and Water System: Generation, Conversion, and Contributions to Bacteria Inactivation—An Analysis by Electron Spin Resonance Spectroscopy†

, 2012
Hydroxyl radical (•OH) and singlet oxygen (1O2) were detected by electron spin resonance (ESR) spectroscopy in a direct current He/O2 (2%) non-thermal plasma microjet-water system. is shown to be the precursor of •OH.
Haiyan Wu, P. P. Sun, H. Feng, Haixia Zhou, Ruexue Wang, Yongdong Liang, Jingfen Lu, Weidong Zhu, Jue Zhang, Jing Fang   +9 more
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Electron Spin Resonance Spectroscopy

1999
Some ideas of generalized Peierls as well generalized spin-Peierls (s-P) transitions in conjugated (quasi) 1D—polymers are discussed. ESR, IR and microwave photoconductivity studies on oriented carbynoid samples prepared by chemical dehydrofluorination of poly(vinylidene fluoride) (PVDF) agreed rather well with the assuption of a room temperature ...
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Measurements of Superoxide Anion Radical and Superoxide Anion Scavenging Activity by Electron Spin Resonance Spectroscopy Coupled with DMPO Spin Trapping

, 1994
A quantitative analysis of superoxide anion radical (·O2−) and hydroperoxyl radical (·OOH) generated in the hypoxanthine–xanthine oxidase (HPX–XOD) reaction system in the presence of dimethyl sulfoxide (DMSO) was explored by a spin-trapping method using ...
M. Kohno, Y. Mizuta, M. Kusai, T. Masumizu, K. Makino   +4 more
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Antioxidant properties of natural and synthetic chromanol derivatives: study by fast kinetics and electron spin resonance spectroscopy.

Journal of Organic Chemistry, 2005
[structure: see text] Chromanol-type compounds act as antioxidants in biological systems by reduction of oxygen-centered radicals. Their efficiency is determined by the reaction rate constants for the primary antioxidative reaction as well as for ...
W. Gregor, G. Grabner, Christian Adelwoehrer, T. Rosenau, L. Gille   +4 more
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Electron spin resonance spectroscopy of free radicals

Magnetic Resonance in Chemistry, 1993
AbstractSolution and powder ESR spectra of the 4‐trifluoromethyl‐1,2,3,5‐dithiadiazolyl and 4‐pentafluorophenyl‐1,2,3,5‐dithiadiazolyl free radicals were analysed. Comparison of the ESR parameters with those obtained for the protonated equivalents shows that fluorination produces a drift of unpaired electron spin density away from the nitrogen 2px ...
Leslie H. Sutcliffe, Andrew S. Partington, Keith F. Preston, Melbourne J. Schriver, Shirley A. Fairhurst, Jack Passmore, Arthur J. Banister, Jeremy M. Rawson   +7 more
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Note: High sensitivity pulsed electron spin resonance spectroscopy with induction detection.

Review of Scientific Instruments, 2011
Commercial electron spin resonance spectroscopy and imaging systems make use of the so-called "induction" or "Faraday" detection, which is based on a radio frequency coil or a microwave resonator. The sensitivity of induction detection does not exceed ~3
Y. Twig, Ekaterina Dikarov, W. Hutchison, A. Blank   +3 more
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Electrochemical Generation of Free Radicals and Their Study by Electron Spin Resonance Spectroscopy; the Nitrobenzene Anion Radical

, 1960
: The nitrobenzene anion radical, (.C6H5NO2)(-), was prepared by constant potential electrolysis of nitrobenzene solutions at a mercury pool electrode placed directly inside the microwave cavity of an electron spin resonance spectrometer.
D. Geske, A. Maki
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Dolomite thermometry by electron spin resonance spectroscopy

Chemical Geology, 1984
Abstract Electron spin resonance (ESR) spectroscopy has been used to distinguish different genetic types of dolomite in the complex metamorphic terrain of the Ballachullish area of NW Scotland. By measuring the ESR signals of Mn2+ from the two inequivalent sites in dolomite, the partition coefficient can be determined and related to temperature.
John G. Angus, J.Barrie Raynor, David Beveridge   +2 more
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