Radiation Effects

ESR and ENDOR Analysis

1st Edition - January 1, 1977
Author: Harold C. Box
Language: English
eBook ISBN:
9 7 8 - 1 - 4 8 3 2 - 1 6 5 1 - 5

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… Read more

Purchase options

LIMITED OFFER

Save 50% on book bundles

Immediately download your ebook while waiting for your print delivery. No promo code is needed.

Institutional subscription on ScienceDirect

Request a sales quote

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.

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

References

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

References

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

References

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

References

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

References

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

References

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

References

Chapter 8 Excitations and Photolysis

8-1 Excitation

8-2 Homolytic Cleavage

8-3 Photoionization

8-4 Photolysis via Intermediates

References

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

References

Chapter 10 Overall Mechanisms: Some Examples

10-1 Introduction

10-2 Carboxylic Acids

10-3 Protein Constituents

10-4 Nucleic Acid Constituents

References

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

References

Appendixes

Appendix A Spin Matrices

Appendix B Van Vleck Perturbation Theory

Appendix C Integrals of Antisymmetric Product Functions

Appendix D Tables of Useful Numbers

Index