Advances in Magnetic Resonance

Description

Advances in Magnetic Resonance, Volume 9 describes the magnetic resonance in split constants and dipolar relaxation.
This book discusses the temperature-dependent splitting constants in the ESR spectra of organic free radicals; temperature-dependent splittings in ion pairs; and magnetic resonance induced by electrons. The electron impact excitation of atoms and molecules; intramolecular dipolar relaxation in multi-spin systems; and dipolar cross-correlation problem are also elaborated. This text likewise covers the NMR studies of molecules oriented in thermotropic liquid crystals and diffusion coefficients of the molecules dissolved in liquid crystals.
This publication is beneficial to students and researchers interested in split constants and dipolar relaxation.

Front Cover 2
Advances in Magnetic Resonance 5
Copyright Page 6
Table of Contents 7
Contributors 9
Contents of Previous Volumes 11
Chapter 1. Temperature-Dependent Splitting Constants in the ESR Spectra of Organic Free Radicals 15
- I. Introduction 15
- II. Temperature-Dependent Splittings of Protons 16
- III. Temperature-Dependent Splittings of Other Nuclei 44
- IV. Temperature-Dependent Splittings in Ion Pairs 50
- V. Conclusion 62
Chapter 2. Magnetic Resonance Induced by Electrons: Studies of the Simplest Atomic and Molecular Systems 63
- I. Introduction 64
- II. Electron Impact Excitation: Atoms and Molecules 66

Front Cover 2
Advances in Magnetic Resonance 5
Copyright Page 6
Table of Contents 7
Contributors 9
Contents of Previous Volumes 11
Chapter 1. Temperature-Dependent Splitting Constants in the ESR Spectra of Organic Free Radicals 15
- I. Introduction 15
- II. Temperature-Dependent Splittings of Protons 16
- III. Temperature-Dependent Splittings of Other Nuclei 44
- IV. Temperature-Dependent Splittings in Ion Pairs 50
- V. Conclusion 62
Chapter 2. Magnetic Resonance Induced by Electrons: Studies of the Simplest Atomic and Molecular Systems 63
- I. Introduction 64
- II. Electron Impact Excitation: Atoms and Molecules 66
- V. The Hamiltonian 71
- VI. One-Electron Atoms 79
- VII. The Helium Atom 98
- VIII. Other Atoms 118
- IX. The Hydrogen and Deuterium Molecules 120
- X. The He2 Molecule 159
- XI. Heavier Molecules 162
- XII. Conclusion 169
Chapter 3. Intramolecular Dipolar Relaxation in Multispin Systems 171
- I. Introduction 172
- II. The Dipolar Cross-Correlation Problem 173
- III. Mathematical Treatment of Multispin Relaxation 177
- IV. The Dipolar Correlation Function 192
- V. Relaxation Equations for Systems Composed of Two, Three, and Four Equivalent Nuclei 202
- VI. Relaxation Equations for Systems Composed of Two, Three, and Four Nonequivalent Nuclei 217
- VII. Hybrid Spin Systems 226
- VIII. Other Multispin Systems 243
- IX. Effects of Multispin Correlations in the Presence of Secondary Saturating Fields 245
- X. Summary 267
- Appendix A 268
- Appendix Β 276
- Summary of Notation 278
- ACKNOWLEDGMENTS 281
Chapter 4. NMR Studies of Molecules Oriented in Thermotropic Liquid Crystals 283
- I. Introduction 284
- II. Basic Theory 286
- III. Experimental Details 289
- IV. Spectral Analysis 292
- V. Factors Limiting the Precision of the Derived Information 298
- VII. Shielding Anisotropics 302
- VI. Orientation of the Solute Molecules 302
- VIII. Studies in a Smectic Phase 304
- IX. Diffusion Coefficients of the Molecules Dissolved in Liquid Crystals 305
- X. Intramolecular Motion 306
- XI. Inorganic Complexes 307
- XII. Compounds Studied and Information Derived 309
- Appendix A: Compounds Investigated in Thermotropic Liquid Crystals and Reported Earlier 396
- Appendix B: Liquid Crystal Solvents Used 398
- Appendix C: Additional Literature 402
- ACKNOWLEDGMENTS 404
Subject Index 405

Volume 9

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