NMR of liquid crystal dendrimers - NMR of liquid crystal dendrimers -

Preface Dendrimers NMR of Liquid Crystals and Liquid Crystal Dendrimers Liquid Crystals Liquid Crystals Mesophases of Thermotropic Liquid Crystals Nematic Phases Smectic Phases Columnar Phases Molecular Structures of Liquid-Crystalline Dendrimers Introduction Side-Chain Liquid-Crystalline Dendrimers PAMAM- and PPI-Based Liquid-Crystalline Dendrimers Silicon-Containing Liquid-Crystalline Dendrimers Carbosilane-based dendrimers Siloxane-based dendrimers Carbosilazane-based dendrimers Main-Chain Liquid-Crystalline Dendrimers Shape-Persistent Liquid-Crystalline Dendrimers Supramolecular Dendromesogens Other Liquid-Crystalline Dendrimer Structures Fundamentals of Nuclear Magnetic Resonance Introduction Nuclear Paramagnetism Nuclear Spin Nuclear Magnetization Interaction with an External Field Dynamics of Noninteracting Spins: Bloch's Equations Motion of a Magnetic Moment Bloch's Equations Interaction with an Oscillating Magnetic Induction Generating Bi and Reading M±The Nuclear Spin Hamiltonian Reduced Spin Hamiltonian in High-Field NMR Spectroscopy Reduced Spin Hamiltonian in High-Field NMR Spectroscopy of Isotropic Liquids and Gases Selection Rules and Transition Probabilities Energy Spectrum of the Nuclear Spin Hamiltonian in High-Field NMR Spectroscopy Energy spectrum of a system of n interacting spins Dynamics of Interacting Spins The Density Matrix Time evolution of the density matrix: the Liouville/von Neumann equation The density matrix in thermodynamic equilibrium Pulsed Nuclear Magnetic Resonance Detection of the NMR Observable Time Evolution of the Density Matrix under RF Pulses NMR Spectroscopy of Anisotropic Fluid Systems: Theory and Experiment Introduction Nuclear Spin Hamiltonian for NMR of Anisotropic Fluid Systems Averaged Second-Rank Tensorial Quantities and Order Parameters Determination of High-Field NMR Absorption Spectra for Selected Spin Systems NMR Spectrum from Two Interacting Identical Spin 1/2 Particles Subjected to the Same Chemical Shift NMR Spectrum from One Spin 1 Particle Subjected to Quadrupolar Interaction and the Chemical Shift Quantum Mechanical Analysis of Selected NMR Pulse Sequences Spin System Subjected to a Single n/2 RF Pulse in Resonance Solid Echo Pulse Sequence NMR Relaxation and Molecular Dynamics: Theory General Concepts Relaxation Rates Spin-Lattice Relaxation in Aligned Systems Relaxation Mechanisms Isotropic Rotations Rotations/Reorientations Molecular Translational Self-Diffusion Collective motions Cross-relaxation NMR Relaxometry and Molecular Dynamics: Experimental Techniques Inversion Recovery Fast Field Cycling Experimental Setups NMR Spectroscopy of Liquid Crystal Dendrimers: Experimental Results NMR of LC Dendrimers and the Investigation of the Biaxial Nematic Phase Biaxial Nematic Ordering and NMR Spectroscopy Organosiloxane Tetrapodes Experimental Procedures ° rotation Continuous rotation Experimental Results and Spectra Simulations ° rotation technique and spectra of a static distribution of nematic domains Continuous-rotation technique and the effect of slow motions Discussion of the Spectra Simulation Results Comparison with Tetrapodes' Monomers and Other Main-Chain LC Dendrimers NMR Relaxometry of Liquid Crystal Dendrimers: Experimental Results Liquid-Crystalline Dendrimers Investigated by NMR Relaxometry End-On Organosiloxane Tetrapodes with Strong Terminal Dipoles Organosiloxane Tetrapodes with Laterally Attached Mesogens Organosiloxane Octopodes with Laterally Attached Mesogens PAMAM Liquid-Crystalline Dendrimers of Generations 1 and 3 The Influence of Dendrimers' Structure on the Molecular Dynamics Bibliography