Fields of Research, NMR of Oriented Molecules

Dynamic NMR in Liquid Crystals

  • Introduction
  • Theory
  • Lineshapes
  • Experimental Aspects
    • Liquid Crystalline Solvents
    NMR Measurements
  • Multiple Quantum Dynamic NMR
  • Applcations to spin 1/2 nuclei
    • Ring Inversion (s-Trioxan, etc.)
    Bond Shift (Cyclooctatetraene)
    Hindered Rotation
  • Applications to spin I=1 nuclei
    • Ring Inversion (Cyclohexane, p-Dioxan, etc.)
    Cope Rearrangement (Bullvalene, etc.)
  • Two-Dimensional Exchange NMR Spectroscopy for spin I=1 Nuclei
    • Peak Assignment and Relative Signs of Quadrupole Interactions
    Cope Rearrangement in Bullvalene: Higher Order Cross Peaks
  • Dynamic Echo Train Experiments
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    Introduction

    Dynamic NMR in Liquid Crystal

    The Hamiltonian for a such partially aligned spin system contains an extra term (see )

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    Last Update: April 22th, 1997
    By: Alexan Shahatuni (msrc@moon.yerphi.am)