Annual Reports on NMR Spectroscopy (eBook)

Front Cover 1
Annual Reports on NMR Spectroscopy, Volume 35 4
Copyright Page 5
Contents 10
List of Contributors 6
Preface 8
Chapter 1. Proton Tunnelling Effects in Metal Hydride NMR 12
1. Introduction 13
2. A survey of experimental data 14
3. Basic principles of exchange coupling 22
4. Models of temperature effects on exchange coupling 31
5. Ab initio calculations 45
6. Consistent treatment of coherent and incoherent effects 49
7. Concluding remarks 61
Acknowledgements 62
References 63
Chapter 2. Structural Studies of Hydrogen-bonded Peptides and Polypeptides by Solid-state NMR 66
1. Introduction 67
2. Theory and experiment 68
3. Hydrogen-bond length and NMR chemical shift 73
4. Main-chain dihedral angles and 13C NMR chemical shifts 123
5. Conclusions 145
References 145
Chapter 3. NMR Imaging 150
1. Introduction 151
2. Basic imaging principles 153
3. Spatial encoding and decoding 157
4. Image contrast and quantitation 166
5. Image reconstruction techniques 169
6. Diffusion and flow imaging 187
7. Technical aspects of imaging 201
8. Artefacts, complications and resolution 205
9. Areas of application 212
10. Concluding remarks 222
Acknowledgements 223
References 223
Chapter 4. NMR Studies of Interfacial Phenomena 232
1. Introduction 232
2. Study of interfacial molecules 235
3. Study of interfacial ionic species 253
4. Study of superficial groups of the less mobile phase 266
5. Study of solid-solid interfaces 268
6. Conclusions 270
Acknowledgements 270
References 271
Index 276