NMR and EPR Spectroscopy (eBook)

Papers Presented at Varian's Third Annual Workshop on Nuclear Magnetic Resonance and Electron Paramagnetic Resonance, Held at Palo Alto, California

Sam Stuart (Autor)

eBook Download: PDF

2013 | 1. Auflage
296 Seiten
Elsevier Science (Verlag)
978-1-4832-2669-9 (ISBN)

Infos

NMR and EPR Spectroscopy covers the proceedings of the Varian Associates's Third Annual Workshop on Nuclear Magnetic Resonance and Electron Paramagnetic Resonance, held at Palo Alto, California on October 19-23, 1959. This book is organized into three parts encompassing 24 chapters, and begins with an introduction to NMR and EPR techniques. The subsequent chapters are devoted to intermediate and advanced topics in the high resolution form of NMR Spectroscopy. The content of these chapters include a number of laboratory sessions designed to supplement and complement the lectures on various aspects of the technique. Other chapters focus topics related to EPR Spectroscopy, including its principles, instrumentation, significant development, and applications. This book will be of value to analytical and organic chemists and researchers.

Dr. Sam Stuart is a physiotherapist and a research Fellow within the Balance Disorders Laboratory, OHSU. His work focuses on vision, cognition and gait in neurological disorders, examining how technology-based interventions influence these factors. He has published extensively in world leading clinical and engineering journals focusing on a broad range of activities such as real-world data analytics, algorithm development for wearable technology and provided expert opinion on technology for concussion assessment for robust player management. He is currently a guest editor for special issues (sports medicine and transcranial direct current stimulation for motor rehabilitation) within Physiological Measurement and Journal of NeuroEngineering and Rehabilitation, respectively.

Inhalt

Front Cover 1
NMR and EPR Spectroscopy 4
Copyright Page 5
Table of Contents 8
INTRODUCTION 6
PART I: AN INTRODUCTION TO NMR AND EPR 10
CHAPTER 1. BACKGROUND AND FUNDAMENTALS OF NMR-EPR SPECTROSCOPY AND SPECTROMETERS 10
CHAPTER 2. INTRODUCTION TO HIGH RESOLUTION NMR SPECTROMETRY 30
THERMAL RELAXATION 31
PHASE COHERENCE 31
MAGNETIC FIELD HOMOGENEITY 32
SLOW PASSAGE 32
ABSORPTION AND DISPERSION 33
SATURATION 33
APPARATUS 34
THE CHEMICAL SHIFT 36
SPIN-COUPLING BETWEEN NUCLEI 39
THE CASE WHERE d/J IS GREATER THAN 5 AND LESS THAN 15 40
EXACT SOLUTIONS 40
SOME SIMPLE STRUCTURAL APPLICATIONS 41
CHEMICAL EXCHANGE 43
POTENTIAL BARRIERS 44
COMPLEX FORMATION 44
HYDROGEN BONDING 46
SENSITIVITY 47
OTHER APPLICATIONS 49
A MORE DIFFICULT STRUCTURAL PROBLEM 51
CONCLUSION 52
CHAPTER 3. EPR SPECTROSCOPY 53
INTRODUCTION 53
DETECTION 54
EPR SPECTRA INTERPRETATION 60
REFERENCES 64
CHAPTER 4. HIGH RESOLUTION NMR OPERATING FUNDAMENTALS 65
CHAPTER 5. EPR SPECTROMETERS: OPERATING FUNDAMENTALS 74
PART II: HIGH RESOLUTION NMR SPECTROSCOPY 90
CHAPTER 6. INSTRUMENTATION OF HIGH RESOLUTION NMR 90
CHAPTER 7. HIGH RESOLUTION NMR AS A STRUCTURE DETERMINING TOOL 109
SUMMARY 129
REFERENCES 130
CHAPTER 8. HIGH RESOLUTION NMR AS AN ANALYTICAL TOOL 131
QUANTITATIVE ANALYSIS 138
AUDIO-FREQUENCY MODULATION 143
SUMMARY 147
REFERENCES 148
CHAPTER 9. NMR FOR THE PHYSICAL CHEMIST 149
INTRODUCTION 149
PHYSICAL MODEL OF THE EXCHANGE REACTION 150
THEORETICAL EXPLANATION OF KINETIC PHENOMENON ON RESONANCE LINES 150
EXAMPLE OF BARRIER MEASUREMENT TO HINDERED ROTATION 156
INSTRUMENTAL TECHNIQUES 157
CONCLUSIONS 159
REFERENCES 159
CHAPTER 10. ANALYSIS OF HIGH RESOLUTION NMR SPECTRA 160
INTRODUCTION 160
METHOD OF ANALYSIS 160
DEFINITIONS AND SIMPLIFICATIONS 163
EXACT SOLUTIONS 167
REFERENCES 172
CHAPTER 11. MEASUREMENT OF RADIO-FREQUENCY FIELD H1 173
REFERENCES 177
CHAPTER 12. MEASUREMENT OF RELAXATION TIMES 178
1. INTRODUCTION 178
2. MEASUREMENT OF SHORT RELAXATION TIMES 179
3. MEASUREMENT OF INTERMEDIATE AND LONG RELAXATION TIMES 180
REFERENCES 184
CHAPTER 13. ELECTRIC SHIMS 185
1. THEORY 185
2. OPERATING PROCEDURE 188
REFERENCES 188
CHAPTER 14. MAGNETIC FIELD MODULATION FOR HIGH RESOLUTION NMR 189
REFERENCES 193
CHAPTER 15. OPERATION OF AN NMR INTEGRATING SYSTEM 194
1. EQUIPMENT 194
2. SETTING-UP FOR MODULATION AND PHASE DETECTION 195
3. BALANCING THE INTEGRATOR AND ITS PHASE DETECTOR 196
4. LEVEL CONTROLS 197
5. MISCELLANEOUS 199
PART III: EPR SPECTROSCOPY 200
CHAPTER 16. INSTRUMENTATION OF EPR 200
CHAPTER 17. CHEMICAL APPLICATIONS OF EPR 216
1. FREE RADICAL INTERMEDIATES IN ORGANIC REACTIONS 216
2. REACTION KINETICS 219
3. STUDY OF SURFACE CHEMISTRY 221
4. IRRADIATION DAMAGE 223
5. POLYMERIZATION REACTIONS 226
6. LOW TEMPERATURE TRAPPING 228
REFERENCES 232
CHAPTER 18. THEORY OF EPR SPECTRA 233
CHAPTER 19. BIOLOGICAL APPLICATIONS OF EPR 242
REFERENCES 248
CHAPTER 20. PHOTOCHEMICAL STUDIES WITH EPR 250
REFERENCES 260
CHAPTER 21. PARAMAGNETIC RESONANCE RESPONSE OF COLOR CENTERS 261
REFERENCES 269
CHAPTER 22. PARAMAGNETIC IONS IN CRYSTALS 270
1. INTRODUCTION 270
2. THE GENERAL HAMILTONIAN 270
3. THE CRYSTAL FIELD 271
4. DERIVATION OF THE SPIN–HAMILTONIAN 273
5. DISCUSSION 274
6. DEGENERATE LOWEST ORBITAL LEVEL 274
7. S-STATE IONS 275
8. RELAXATION PROCESSES 275
REFERENCES 276
CHAPTER 23. DYNAMIC NUCLEAR POLARIZATION IN LIQUIDS 277
REFERENCES 286
CHAPTER 24. COLOR CENTER "WORKSHOP" EXPERIMENT 288
SUBJECT INDEX 292

Produkt-Details

• Erscheint lt. Verlag: 3.9.2013
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Quantenphysik
• Themenwelt: Technik
• ISBN-10: 1-4832-2669-7 / 1483226697
• ISBN-13: 978-1-4832-2669-9 / 9781483226699