Nuclear Magnetic Resonance Spectroscopy Of Liquid Crystals.

This edited volume provides an extensive overview of how nuclear magnetic resonance can be an indispensable tool to investigate molecular ordering, phase structure, and dynamics in complex anisotropic phases formed by liquid crystalline materials. The chapters, written by prominent scientists in the...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Formato: Electrónico eBook
Idioma:Inglés
Publicado: World Scientific 2009.
Temas:
Nuclear magnetic resonance spectroscopy.
Liquid crystals.
Spectroscopie de la résonance magnétique nucléaire.
Cristaux liquides.
Liquid crystals
Nuclear magnetic resonance spectroscopy
Electronic resource.
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Cover13;
  • Contents
  • Preface
  • 1. Novel Strategies for Solving Highly Complex NMR Spectra of Solutes in Liquid Crystals E.E. Burnell, C.A. de Lange and W. Leo Meerts
  • 1.1. Introduction
  • 1.2. Theory
  • 1.3. Multiple-quantum NMR
  • 1.3.1. The MQ experiment and some variants
  • 1.3.2. Spectral analysis with MQ
  • 1.4. Automated analysis using evolutionary strategies
  • 1.4.1. Limiting parameter search space
  • 1.4.2. The GA-method
  • 1.5. Results obtained with the GA-method
  • 1.6. Spectral analysis using Evolutionary Algorithms
  • 1. 7. Conclusions
  • Acknowledgments
  • References
  • 2. Analytical Potentials of Natural Abundance Deuterium NMR Spectroscopy in Achiral Thermotropics and Polypeptide Chiral Oriented Solvents P. Lesot and C. Aroulanda
  • 2.1. Introduction
  • 2.2. Theoretical Framework of NAD-NMR in Anisotropic Solvents
  • 2.2.1. Brief description of spin Hamiltonian involved in NAD-NMR
  • 2.2.2. NAD-NMR in chiral oriented solvents
  • 2.2.3. 2 H relaxation and consequences on NAD-NMR spectra
  • 2.3. NAD-NMR Spectroscopy of Strongly Aligned Molecules
  • 2.3.1. Analysis of mesogenic molecules through NAD-NMR
  • 2.3.2. Studies of solutes oriented in thermotropic liquid crystals
  • 2.4. NAD-NMR in Weakly Orienting Polypeptide Solvents
  • 2.4.1. Spectral discrimination of enantiomers using NAD-NMR
  • 2.4.2. Design of 2D pulse sequences dedicated to NAD-NMR
  • 2.4.3. Analysis of chiral rigid and flexible hydrocarbons
  • 2.4.4. Applications of NAD-NMR in asymmetric synthesis
  • 2.4.5. Spectral discrimination of enantiotopic elements
  • 2.5. NAD-NMR in CLCs Using the Technology of Cryogenic Probes
  • 2.5.1. NAD-NMR and 2H cryoprobe: new analytical frontiers
  • 2.5.2. From 2D to 3D NAD-NMR experiments
  • 2.5.3. Anisotropic extension of the SNIF-NMR . method
  • 2.5.4. Empirical assignment of the absolute configuration of enantiomers using NAD-NMR
  • 2.6. Conclusion
  • Acknowledgments
  • References
  • 3. Noble Gas Probes in NMR Studies of Liquid Crystals J. Jokisaari
  • 3.1. Introduction
  • 3.2. NMR Properties of Noble Gases
  • 3.3. Enhancement of Polarization by Optical Pumping
  • 3.4. Noble Gases in Bulk Liquid Crystals
  • 3.4.1. Chemical shift
  • 3.4.2. Diffusion
  • 3.4.3. Relaxation
  • 3.4.4. Quadrupole coupling
  • 3.4.5. Simulations
  • 3.5. Xenon in Confined Liquid Crystals
  • 3.5. Conclusions
  • Acknowledgments
  • References
  • 4. Bicelles 8211; A Much Needed Magic Wand to Study Membrane Proteins by NMR Spectroscopy R. Soong, J. Xu and A. Ramamoorthy
  • 4.1. Introduction
  • 4.2. Bicelles: Simple, Elegant, Yet Controversial
  • 4.3. Applications of Bicelles in Structural Biology
  • Acknowledgement
  • References
  • 5. Advances in Proton NMR Relaxometry in Thermotropic Liquid Crystals P.J. Sebasti
  • 5.1. Introduction
  • 5.2. Mesophases of Thermotropic Liquid Crystals
  • 5.3. Proton NMR Relaxation in Liquid Crystals
  • 5.3.1. Relaxation Mechanisms: Theoretical Models
  • 5.3.2. Experimental Techniques
  • 5.4. Relaxometry Results and Molecular Dynamics
  • 5.4.1. Isotropic phase
  • 5.4.2. Nematic phase and Smectic phases with liquid-like layers
  • 5.4.3. Smectic phases with ordered layers
  • 5.4.4. Columnar phases
  • 5.5. Conclusions and Outlook
  • References
  • 6. Deuterium NMR Study of Magnetic Field Distortions in Ferroelectric Mesogens R.Y. Dong
  • 6.1. Introduction
  • 6.2. Theoretical background
  • 6.2.

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