Annual reports on NMR spectroscopy. Volume ninety /

• Άλλοι συγγραφείς: Webb, G. A. (Graham Alan), 1935-
• Μορφή: Ηλ. βιβλίο
• Γλώσσα: English
• Έκδοση: London : Academic Press is an imprint of Elsevier, 2017.
• Έκδοση: First edition.
• Σειρά: Annual Reports on NMR Spectroscopy, Volume 90
• Θέματα: Nuclear magnetic resonance spectroscopy.; SCIENCE / Chemistry / Analytic; Electronic books.

Annual Reports on NMR Spectroscopy, Volume 91, provides a thorough and in-depth accounting of progress in nuclear magnetic resonance (NMR) spectroscopy and its many applications. Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicists to study the structure and dynamic...

Πίνακας περιεχομένων:

• Front Cover; Annual Reports on NMR Spectroscopy; Copyright; Contents; Contributors; Preface; Chapter One: The Chemical Bond: The Perspective of NMR Spectroscopy; 1. Introduction; 2. Types of Chemical Bonds; 2.1. Strong Bonds; 2.2. Weak Bonds; 3. Through-Bond and Through-Space Effects in NMR; 3.1. Chemical Shift; 3.2. Indirect Coupling; 3.3. Direct Dipolar Interaction; 3.4. Quadrupolar Interaction; 3.5. Relaxation; 4. Vibrations and Bond Distances; 5. NMR Studies of Hydrogen Bonding; 5.1. Chemical Shifts; 5.2. Chemical-Shift Anisotropy.
• 5.3. The Temperature Dependence of Chemical Shifts5.4. X-H Scalar Coupling; 5.5. Through-Hydrogen-Bond Coupling; 5.6. Hydrogen-Deuterium Exchange; 5.7. Hydrogen/Deuterium Isotope Effects; 5.8. D/H Fractionation; 5.9. Other NMR Techniques; 6. Conclusions; Acknowledgments; References; Chapter Two: NMR Studies of Fossilized Wood; 1. Introduction; 2. Fossil Wood and Fossilization Conditions; 2.1. Coalification; 2.2. Petrification; 2.2.1. Silification; 2.2.2. Carbonate Mineralization; 2.2.3. Pyritization; 2.2.4. Phosphatization; 2.2.5. Fossil Systems Combining Diverse Minerals; 2.3. Mummification.
• 3. High-Resolution Solid-State NMR: Analyses of Fossil Materials in Bulk3.1. General Considerations; 3.2. The Nuclei of Interest for NMR of Fossilized Wood; 3.3. Solid-State 13C NMR Experiments; 3.3.1. Robust 1D Experiments; 3.3.2. 2D NMR Experiments; 3.4. Quantitative Analyses from Solid-State 13C NMR; 3.5. 13C NMR Assignment of Fossilized Wood; 4. Combining Solid-State NMR and Microscopy; 5. Emerging Techniques to Explore Fossilized Wood; 5.1. Dynamic Nuclear Polarization Solid-State NMR; 5.2. Magnetic Resonance Imaging; 6. Conclusions; Acknowledgments; References.
• Chapter Three: Quantitative NMR Studies of Multiple Compound Mixtures1. Introduction; 2. Theoretic Background and Technical Keynotes of Quantitative NMR; 2.1. qNMR Data Acquisition; 2.1.1. Interscan Delay and the Recovery Extent to the Equilibrium (fre); 2.1.2. Off-Resonance Effect and the Exciting Efficiency Factor (fe); 2.1.3. NMR Signal Attenuation Factor (fa); 2.1.4. Receiving Efficiency Factor (fr); 2.2. qNMR Data Processing; 2.2.1. Spectral Processing and t1 Noise Suppression; 2.2.2. Peak Integration/Peak Height and S/N Ratio; 2.2.3. NMR Signal Deconvolution.
• 2.3. Sample Preparation and Other Practical Aspects2.3.1. Relative Quantification or Quantitative Profiling Among Samples; 2.3.2. Absolute Quantification Using Internal Standard; 2.3.3. Absolute Quantification Using External Standard; 2.3.4. Other Practical Aspects for Quantification by NMR; 3. Quantitative NMR Methods; 3.1. Direct 1H 1D qNMR; 3.2. Indirect 1H 1D qNMR; 3.3. Heteronuclear 1D qNMR; 3.3.1. 13C 1D qNMR; 3.3.2. 31P 1D qNMR; 3.3.3. 19F 1D qNMR; 3.4. Homonuclear and Heteronuclear 2D qNMR Methods; 3.4.1. ITOCSY; 3.4.2. FMQ by NMR; 3.4.3. HSQC0; 4. Applications of qNMR.