Radiation Effects

Radiation Effects

ESR and ENDOR Analysis

1st Edition - January 1, 1977

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  • Author: Harold C. Box
  • eBook ISBN: 9781483216515

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Radiation Effects: ESR and ENDOR Analysis presents an explanation of the biological effects of radiation. The book discusses the characteristics of the electron spin resonance (ESR) and electron-nuclear double resonance (ENDOR) spectra, such as radiation damage and magnetic resonance spectroscopy, g values, hyperfine couplings, and other special effects. The text also describes the radiation effects and damage mechanisms; as well as the free radicals produced in the primary oxidative process initiated by ionizing radiation, in the primary reductive process initiated by ionizing radiation, and via excitation effects. The classification of the mechanisms of radiation damage by various other secondary processes is also considered. The secondary processes include reactions of hydrogen atoms; reactions of hydroxyl radicals; electron or proton transfer; conformational changes; abstraction, transfer, migration, and exchange of hydrogen; radical addition reactions; and radical pair formation. Some examples of overall mechanisms, such as the overall radiation chemistry of carboxylic acids and the radiation chemistry of protein and nucleic acid constituents, are described. People involved in energy and cancer research will find the book invaluable.

Table of Contents

  • Preface

    Part I Characteristics of ESR and Endor Spectra

    Chapter 1 Radiation Damage and Magnetic Resonance Spectroscopy

    1-1 Introduction

    1-2 ESR and Radiation Effects

    1-3 ENDOR and Radiation Effects

    1-4 Spectral Parameters

    1-5 Temporal Parameters

    1-6 Objectives of Radiation Research


    Chapter 2 g Values

    2-1 Introduction

    2-2 Spin Hamiltonian

    2-3 Measurement of g Tensors

    2-4 Origin of the g Shift

    2-5 Free Radical Structure and the g Tensor


    Chapter 3 Hyperfine Couplings

    3-1 Introduction

    3-2 The Spin Hamiltonian Revisited

    3-3 Measurement of Hyperfine Couplings

    3-4 Calculation of Hyperfine Tensors

    3-5 Spin Density Distributions

    3-6 The Hückel Approximation

    3-7 The INDO Approximation


    Chapter 4 Special Effects

    4-1 Excited Triplet States

    4-2 ESR Studies of Triplet States

    4-3 Radical Pairs and Their Triplet State

    4-4 ESR and ENDOR Studies of Radical Pairs

    4-5 Quadrupole Couplings

    4-6 Spin Polarization in Radical Reactions


    Chapter 5 Experimental Considerations

    5-1 ESR Spectroscopy

    5-2 ENDOR Spectroscopy

    5-3 Irradiation Techniques

    5-4 G Value Measurements

    5-5 Computer Aids

    5-6 Kinetic Studies

    5-7 Direct and Indirect Effects


    Part II Radiation Effects and Damage Mechanisms

    Chapter 6 Oxidation Effects

    6-1 Introduction

    6-2 Carboxylic Acids and Amides

    6-3 Amino Acids, Peptides, and Proteins

    6-4 Sulfur Compounds

    6-5 Nucleic Acids and Their Constituents

    6-6 Halogen Compounds

    6-7 Water and Aqueous Systems


    Chapter 7 Reduction Effects

    7-1 Introduction

    7-2 Carboxylic Acids and Amides

    7-3 Amino Acids, Peptides, and Proteins

    7-4 Sulfur Compounds

    7-5 Nuceic Acids and their Constituents

    7-6 Trapped Electrons

    7-7 Frozen Aqueous Solutions

    7-8 Miscellaneous Results


    Chapter 8 Excitations and Photolysis

    8-1 Excitation

    8-2 Homolytic Cleavage

    8-3 Photoionization

    8-4 Photolysis via Intermediates


    Chapter 9 Secondary Processes

    9-1 Introduction

    9-2 Reactions of Hydrogen Atoms

    9-3 Reactions of Hydroxyl Radicals

    9-4 Electron Transfer

    9-5 Proton Transfer

    9-6 Conformational Changes

    9-7 Abstraction, Transfer, Migration, and Exchange of Hydrogen

    9-8 Radical Addition Reactions

    9-9 Radical Pair Formation


    Chapter 10 Overall Mechanisms: Some Examples

    10-1 Introduction

    10-2 Carboxylic Acids

    10-3 Protein Constituents

    10-4 Nucleic Acid Constituents


    Chapter 11 Perspectives

    11-1 Introduction

    11-2 Sensitization : Oxygen and its Mimics

    11-3 Radiation Sensitization: Halogenated Pyrimidines

    11-4 Radiation Protectors

    11-5 Radiation Damage in Electron Microscopy

    11-6 Photosynthesis

    11-7 Carcinogenesis and Mutagenesis



    Appendix A Spin Matrices

    Appendix B Van Vleck Perturbation Theory

    Appendix C Integrals of Antisymmetric Product Functions

    Appendix D Tables of Useful Numbers


Product details

  • No. of pages: 288
  • Language: English
  • Copyright: © Academic Press 1977
  • Published: January 1, 1977
  • Imprint: Academic Press
  • eBook ISBN: 9781483216515

About the Author

Harold C. Box

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