Advances in Magnetic Resonance (eBook)

Front Cover 1
Advances in Magnetic Resonance 4
Copyright Page 5
Table of Contents 10
Contributors 6
Preface 8
Contents of Previous Volumes 12
Tentative Contents of Future Volumes 13
Advances in MAGNETIC RESONANCE 14
Chapter 1. Sensitivity Enhancement in Magnetic Resonance 16
I. Introduction 16
II. Methods to Improve the Sensitivity 18
III. The Information Processor 27
IV. Optimum Timing of Magnetic Resonance Experiments 79
Appendix A: Definition of the Fourier Transform 133
Appendix B: Some Remarks about Linear Filters 134
Appendix C: Some Remarks about Random Noise 135
Appendix D: Measurement of the Signal-to-Noise Ratio 136
Appendix E: Calculation of Optimum Filters 138
Appendix F: Intermediate Passage Region 143
Appendix G: Conditions for Adiabatic Passage in Liquids and Gases 146
Chapter 2. The Chemical Shift and Other Second-Order Magnetic and Electric Properties of Small Molecules 152
I. Introduction 153
II. The Bound Proton in a Strongly Separated Molecular Ground State 157
III. Proton Shielding in Transition Metal Hydride Complexes 161
IV. General Theory of Chemical Shift 164
Appendix A: Molecular Self-Consistent Field Theory for Unperturbed Molecules 175
Appendix B: Perturbed (or Coupled) Self-Consistent Field Theory 182
Chapter 3. Theory of the Chemical Shift 192
I. Introduction 192
II. General Theory 194
III. Calculations 206
IV. Discussion 226
Appendix A: The Current Density Procedure and Pseudofields 229
Appendix B: The Magnetic Susceptibility of a Cyclic Molecule and London's Procedure 231
Chapter 4. Nuclear Relaxation in Hydrogen Gas and Liquid 240
I. Introduction 240
II. Qualitative Discussion of H2 Relaxation 241
III. Relaxation Theory 244
IV. Evaluation of the Lattice Correlation Functions 250
V. Interpretation of the Experimental H2 Gas Data 267
VI. Interpretation of the Experimental Adulterated H2 Gas Data 270
VII. Interpretation of the Experimental H2 Liquid Data 273
VIII. Conclusions 277
Author Index 278
Subject Index 282