Keywords:
Electron paramagnetic resonance.
;
Electronic books.
Description / Table of Contents:
Reflecting the growing volume of published work in this field, researchers will find this book an invaluable source of information on current methods and applications.
Type of Medium:
Online Resource
Pages:
1 online resource (338 pages)
Edition:
1st ed.
ISBN:
9781847553515
Series Statement:
Issn Series
URL:
https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=1185459
DDC:
538.364
Language:
English
Note:
Electron Spin Resonance -- Contents -- Chapter 1 Organic Radical Ions -- 1 Introduction -- 2 Bibliography -- 3 Radical Cations -- 3.1 Experimental Methods -- 3.2 π-Systems -- 3.2.1 Hydrocarbons -- 3.2.2 Non-hydrocarbons -- 3.3 Alkanes -- 3.4 Heteronuclear Radical Cations -- 4 Radical Anions -- 4.1 Formation of Radical Anions -- 4.2 π-Systems -- 4.2.1 Predominantly C-Centred -- 4.2.2 Quinones -- 4.2.3 Heteronuclear Radical Anions -- 4.3 Ion Pairs and Solvent Effects -- 4.4 Reactions Involving Radical Anions -- References -- Chapter 2 Time Resolved ESR Studies of Free Radicals -- 1 Introduction -- 2 Experimental Methods -- 2.1 Continuous-wave Sampling Techniques -- 2.2 Pulse Techniques -- 2.3 Comparison of the Methods -- 2.4 Other Methods -- 3 Chemically Induced Dynamic Electron Polarization -- 3.1 Polarization in the Triplet State -- 3.2 The Triplet Mechanism -- 3.3 The ST0 Radical Pair Mechanism -- 3.4 ST-1 RPM Polarization -- 3.5 Polarization in the Spin-correlated Pair -- 3.6 Interpretation of Spectra Which Exhibit Both TM and RPM Polarization -- 3.7 The Radical-Triplet Pair Mechanism -- 3.8 Polarization by Cross-relaxation -- 4 Polarization in Secondary Radicals -- 4.1. Polarization in Nuclearly-correlated Secondary Radicals -- 4.1.1 Proton-transfer Reactions -- 4.2 Polarization in Nuclearly-uncorrelated Secondary Radicals -- Electron Transfer Reactions -- 5 Conclusions -- References -- Chapter 3 High-field ESR -- 1 Introduction -- 2 Techniques -- 2.1 Magnetic Field -- 2.2 Microwave Equipment and Probe Heads -- 2.3 Pulsed ESR Experiments -- 2.4 ENDOR Experiments -- 2.5 ESR Imaging -- 3 Applications: Molecular Structure -- 3.1 Free Radicals -- 3.2 Paramagnetic Ions, Triplets, and Solid State Defects -- 3.3 Delocalized Electron Centers, Organic Semiconductors, Metals, etc. -- 3.4 Spin Probes and Spin Labels -- 4 Applications: Dynamics Studies.
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4.1 Fast Motion Regime -- 4.2 Dynamics Studies in Slow Motion Regime -- 4.3 Chemical Reactivity vs Molecular Mobility -- 5 Thermal Spin Polarization Effects -- 5.1 VHF ESR of Triplet Radical Pairs -- 5.2 Signs of Spin-Spin Coupling -- 6 Conclusions -- References -- Chapter 4 Transition Metals in Inorganic Systems -- 1 Introduction -- 2 Books and Reviews -- 3 EPR Techniques and Their Applications -- 4 Spectrum Simulation Methods -- 5 The Calculation of Spin-Hamiltonian Parameters -- 6 Monomeric Compounds -- 6.1 Single Crystals -- 6.2 Powders and Frozen Solutions -- 6.3 Matrix Isolated Species -- 7 Discrete Polymeric Species -- 7.1 Dimers -- 7.2 Trimers -- 7.3 Higher Oligomers -- 8 Extended Lattices -- 9 Microporous Materials -- References -- Chapter 5 Radiation Damage in DNA -- 1 Introduction -- 1.1 Scope of This Report -- 1.2 The Primary Workers in the Field -- 1.3 Symbols Used -- 2 DNA Constituents -- 2.1 Pyrimidines -- 2.1.1 Aqueous Solution at Room Temperature -- 2.1.2 Single Crystal Studies -- 2.1.3 Frozen Aqueous Solutions and Glasses -- 2.2 Purines -- 2.2.1 Single Crystals -- 2.2.2 Glasses -- 2.3 Redirection of Anion Protonation by Small Cations -- 2.4 Summary -- 3 DNA -- 3.1 The Radicals Present in DNA -- 3.1.1 Identification of DNA Ion Radicals at Low Temperatures -- 3.1.2 Ion Radical Stabilization by Proton Transfer between Complementary Bases -- 3.1.3 Effects of Added Salts on Radical Yields -- 3.1.4 Questions about Deconvolution of Complex Spectra -- 3.1.5 Other Primary and Secondary Radicals Formed in DNA -- 3.1.6 The Fate of the Electron Adduct in DNA -- 3.2 Hydration and Absolute Yields of Radicals in DNA -- 3.2.1 Hydration and Yields of Total Primary Radicals -- 3.2.2 The Destruction Constant k and Models for DNA Damage -- 3.2.3 Volume of a Trapped Radical Ion Cluster.
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3.2.4 Yields of Individual Ion Radicals as a Function of Hydration -- 3.3 Radical Transfer in DNA and DNA Complexes -- 3.3.1 Electron Transfer Distances in DNA -- 3.3.2 Long Range Hole Transfer -- 3.3.3 Hole Transfer from Backbone to Base -- 3.3.4 Hole Transfer from Hydration Layer to DNA -- 3.3.5 Radical Transfer from Histones and Protein Complexes with DNA -- 3.4 Spin Trapping of DNA Radicals -- 3.5 ESR of High LET Irradiated DNA Components -- References -- Chapter 6 Spin Labelling in Biological Systems -- 1 Introduction -- 2 Progressive CW Saturation and Saturation Transfer Intensities -- 3 Saturation with Spin Exchange -- 4 Accessibility to Paramagnetic Relaxation Agents -- 5 Site-directed Spin Labelling -- 6 Dipolar Induced Paramagnetic Relaxation -- 7 Molecular Dynamics and Saturation -- 8 Conclusion -- References -- Bibliography -- Chapter 7 EPR Studies of Photosynthesis -- 1 Introduction -- 2 EPR on Photosynthetic Systems -- 2.1 Plant Photosynthesis -- 2.1.1 Primary Donor and Acceptors of PS I -- 2.1.2 Donor Side of PS II -- 2.1.3 Mn Water Splitting Complex of PS II and Mn Model Clusters -- 2.1.4 Acceptor Side of PS II -- 2.1.5 Cytochromes -- 2.2 Bacterial Photosynthesis -- 2.2.1 Primary Donor in Bacterial RC's -- 2.2.2 Quinone Acceptors in Bacterial RC's -- 2.2.3 Correlated Radical Pairs in Bacterial RC's -- 2.2.4 Cytochromes -- 2.3 Model Systems -- 2.3.1 Carotenoids -- 2.3.2 Chlorophylls, Porphyrins, and Novel Porphyrinoids -- 2.3.3 Quinones -- 2.3.4 Porphyrin-Quinone Donor-Acceptor Systems -- Acknowledgements -- References -- Chapter 8 Biological Spin Trapping -- 1 Introduction -- 2 Superoxide -- 3 Hydroxyl Radical -- 3.1 Iron -- 3.2 Copper -- 3.3 Vanadium -- 3.4 Chromium -- 3.5 Cobalt -- 3.6 Nickel -- 3.7 HOC1 -- 3.8 Peroxynitrite -- 3.9 Quinones -- 3.10 Hydroxyl Radical Scavengers -- 4 Hydroperoxides -- 4.1 Organic Hydroperoxides.
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4.2 Lipid Hydroperoxides -- 5 Thiyl Radicals -- 6 Hydrazines -- 7 Lignin Peroxidase -- 8 Alcohol -- 9 Sulfur Dioxide, Bisulfites, and Sulfites -- 10 Halocarbons -- 11 Smoke- and Ozone-mediated Free Radicals -- 12 Protein Radicals -- 12.1 Myoglobin -- 12.2 Hemoglobin -- 12.3 Other Proteins -- 13 Arene Diazonium Compounds -- 14 DNA, RNA, and Sugars -- 15 Reperfusion Injury -- 15.1 Heart -- 15.2 Brain -- 15.3 Kidney -- 15.4 Transplant -- 15.5 Models -- 16 Nitrones as Drugs -- 16.1 Radical Scavengers -- 16.2 Shock Effects -- 16.3 Heart Effects -- 16.4 Brain Effects -- 16.5 Miscellaneous Effects -- 17 Spin Trap Decomposition -- 18 New Instrumental Techniques -- 18.1 State of the Art Instrumentation -- 18.1.1 Mass Spectroscopy/EPR -- 18.1.2 Loop Gap Resonator EPR -- 18.2 Instrumental Conditions -- 18.3 Interpretation of Hyperfine Coupling Constants -- 18.4 Fluorescence Detection -- 18.5 Microdialysis -- 18.6 Microcarrier Beads -- 18.7 Low Frequency EPR -- 18.8 Designer Spin Traps -- 18.9 Ex Vivo Radical Adduct Formation -- 19 Radical Adduct Impostors, Misidentifications, and Artifacts -- 20 Reviews on Spin Trapping -- Acknowledgements -- References -- Author Index.
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