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Electron Paramagnetic Resonance Elementary Theory and Practical Applications

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ISBN-10: 0471572349

ISBN-13: 9780471572343

Edition: 1st 1994

Authors: John A. Weil, James R. Bolton, John E. Wertz

List price: $185.00
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Book details

List price: $185.00
Edition: 1st
Copyright year: 1994
Publisher: John Wiley & Sons, Incorporated
Publication date: 3/28/1994
Binding: Hardcover
Pages: 592
Size: 6.50" wide x 9.75" long x 1.25" tall
Weight: 2.244
Language: English

JOHN A. WEIL is Professor Emeritus of Chemistry and Physics at the University of Saskatchewan and an active international researcher in the field of EPR and NMR spectroscopy and theory.JAMES R. BOLTON is President of Bolton Photosciences, which provides specialty consulting services for the development and operation of ultraviolet (UV) technologies. He is Adjunct Professor in the Department of Civil and Environmental Engineering at the University of Alberta, and Professor Emeritus of Chemistry at the University of Western Ontario.

Preface
Acknowledgments
Basic Principles Of Paramagnetic Resonance
Introduction
Historical Perspective
A Simple EPR Spectrometer
Scope of the EPR Technique
Energy Flow in Paramagnetic Systems
Quantization of Angular Momenta
Relation Between Magnetic Moments and Angular Momenta
Magnetic Field Quantities and Units
Bulk Magnetic Properties
Magnetic Energies and States
Interaction of Magnetic Dipoles with Electromagnetic Radiation
Characteristics of the Spin Systems
Parallel-Field EPR
Time-Resolved EPR
Computerology
EPR Imaging
References
Notes
Further Reading
Problems
Magnetic Interaction Between Particles
Introduction
Theoretical Considerations of the Hyperfine Interaction
Angular-Momentum and Energy Operators
Energy Levels of a System with One Unpaired Electron and One Nucleus with I = �
Energy Levels of a System with S = � and I = 1
Signs of Isotropic Hyperfine Coupling Constants
Dipolar Interactions Between Electrons
References
Notes
Further Reading
Problems
Isotropic Hyperfine Effects In Epr Spectra
Introduction
Hyperfine Splitting from Protons
Hyperfine Splittings from Other Nuclei with I = �
Hyperfine Splittings from Nuclei with I > �
Useful Rules for the Interpretation of EPR Spectra
Higher-Order Contributions to Hyperfine Splittings
Deviations from the Simple Multinomial Scheme
Other Problems Encountered in EPR Spectra of Free Radicals
Some Interesting p-Type Free Radicals
References
Notes
Further Reading
Problems
Zeeman Energy (G) Anisotropy
Introduction
Systems with High Local Symmetry
Systems with Rhombic Local Symmetry
Construction of the g Matrix
Symmetry-Related Sites
EPR Line Intensities
Statistically Randomly Oriented Solids
Spin-Orbit Coupling and Quantum-Mechanical Modeling of g
Comparative Overview
References
Notes
Further Reading
Problems
Hyperfine (A) Anisotropy
Introduction
Origin of the Anisotropic Part of the Hyperfine Interaction
Determination and Interpretation of the Hyperfine Matrix
Combined g and Hyperfine Anisotropy
Multiple Hyperfine Matrices
Systems With I > �
Hyperfine Powder Lineshapes
References
Notes
Further Reading
Problems
Systems With More Than One Unpaired Electron
Introduction
Spin Hamiltonian for Two Interacting Electrons
Systems with S = 1
Interacting Radical Pairs
Biradicals
Systems with S > 1
High-Spin and High-Field Energy Terms
The Spin Hamiltonian: A Summing up
Modeling the Spin-Hamiltonian Parameters
References
Notes
Further Reading
Problems
Paramagnetic Species In The Gas Phase
Introduction
Monatomic Gas-Phase Species
Diatomic Gas-Phase Species
Triatomic and Polyatomic Gas-Phase Molecules
Laser Electron Paramagnetic Resonance
Other Techniques
Reaction Kinetics
Astro-EPR
References
Notes
Further Reading
Problems
Transition-Group Ions
Introduction
The Electronic Ground States of d-Electron Species
The EPR Parameters of d-Electron Species
Tanabe-Sugano Diagrams and Energy-Level Crossings
Covalency Effects
A Ferroelectric System
Some f-Electron Systems
References
Notes
Further Reading
Problems
The Interpretation Of Epr Parameters
Introduction
�-Type Organic Radicals
�-Type Organic Radicals
Triplet States and Biradicals
Inorganic Radicals
Electrically Conducting Systems
Techniques for Structural Estimates from EPR Data
References
Notes
Further Reading
Problems
Appendix 9A Hu�ckel Molecular-Orbital Calculations
HMO References
HMO Problems
Relaxation Times, Linewidths And Spin Kinetic Phenomena
Introduction
Spin Relaxation: General Aspects
Spin Relaxation: Bloch Model
Linewidths
Dynamic Lineshape Effects
Longitudinal Detection
Saturation-Transfer EPR
Time Dependence of the EPR Signal Amplitude
Dynamic Nuclear Polarization
Bio-Oxygen
Summary
References
Notes
Further Reading
Problems
Noncontinuous Excitation Of Spins
Introduction
The Idealized B<sub>1</sub> Switch-on
The Single B<sub>1</sub> Pulse
Fourier-Transform EPR and FID Analysis
Multiple Pulses
Electron Spin-Echo Envelope Modulation
Advanced Techniques
Spin Coherence and Correlation
References
Notes
Further Reading
Problems
Double-Resonance Techniques
Introduction
A Continuous-Wave ENDOR Experiment
Energy Levels and ENDOR Transitions
Relaxation Processes in Steady-State ENDOR5
CW ENDOR: Single-Crystal Examples
CW ENDOR in Powders and Non-Crystalline Solids
CW ENDOR in Liquid Solutions
Pulse Double-Resonance Experiments
Electron-Electron Double Resonance (ELDOR
Optically Detected Magnetic Resonance
Fluorescence-Detected Magnetic Resonance
References
Notes
Further Reading
Problems
Other Topics
Apologia
Biological Systems
Clusters
Charcoal, Coal, Graphite and Soot
Colloids
Electrochemical EPR
EPR Imaging
Ferromagnets, Antiferromagnets and Superparamagnets
Glasses
Geologic/Mineralogic Systems and Selected Gems
Liquid Crystals
&#8220;Point&#8221; Defects
Polymers
Radiation Dosage and Dating
Spin Labels
Spin Traps
Trapped Atoms and Molecules
Mathematical Operations
Complex Numbers
Operator Algebra
Determinants
Vectors: Scalar, Vector, and Outer Products
Matrices
Perturbation Theory
Dirac Delta Function
Group Theory
References
Notes
Further Reading
Problems
Quantum Mechanics Of Angular Momentum
Introduction
Angular-Momentum Operators
Commutation Relations for General Angular-Momentum Operators
Eigenvalues of J<sup>2</sup> and J<sub>z</sub>
Superposition of States
Angular-Momentum Matrices
Addition of Angular Momenta
Notation for Atomic and Molecular States
Angular Momentum and Degeneracy of States
Time Dependence
Precession
Magnetic Flux Quantization
Summary
References
Notes
Further Reading
Problems
Notes for Problem B.12
The Hydrogen Atom And Selected Radicals Rh&Lt;Sub&Gt;N&Lt;/Sub&Gt;
Hydrogen Atom
RH Radicals
RH2 Radicals
References
Notes
Further Reading
Problems
Photons
Introduction
The Physical Aspects of Photons
Magnetic-Resonance Aspects
References
Notes
Instrumentation And Technical Performance
Instrumental: Background
CW EPR Spectrometers
Pulsed EPR Spectrometers
Computer Interfacing with EPR Spectrometers
Techniques for Temperature Variation and Control
Techniques for Pressure Variation
References
Notes
Further Reading
Problems
Experimental Considerations
Techniques for Generation of Paramagnetic Species
Lineshapes and Intensities
Sensitivity and Resolution
Measurements
References
Notes
Further Reading
Problems
Epr-Related Books And Selected Chapters
Fundamental Constants, Conversion Factors, And Key Data
Miscellaneous Guidelines
Notation for Symbols
Glossary of Symbols
Abbreviations
Exponent Nomenclature
Journal Reference Style
Author Index
Subject Index