Liquid Crystals and Liquid Crystal Solutions Studied by NMR

TitleLiquid Crystals and Liquid Crystal Solutions Studied by NMR
Publication TypeBook Chapter
Year of Publication2014
AuthorsCalucci, L, Veracini, CA
Book TitleReference Module in Chemistry, Molecular Sciences and Chemical Engineering
ISBN Number9780124095472
KeywordsBicelles, Chemical shift anisotropy, Chiral recognition, Dipolar coupling, Lyotropic, Mesophase, Molecular motions, Nematic, Nuclear relaxation, Orientational order, Quadrupolar interaction, Rotational diffusion, Smectic, Thermotropic, Translational diffusion

Abstract Since the first publication on this subject in 1963, NMR in liquid crystalline systems has been a wide and active field of research in many branches of chemistry, physics, biology, and materials science. Indeed, thanks to the wealth of exploitable nuclei and interactions, NMR spectroscopy has revealed a powerful means of probing structure and dynamics of molecules dissolved in liquid crystals. Moreover, NMR spectroscopy has been successfully employed to investigate properties of mesophases themselves, such as their molecular organization and orientational ordering, translational and rotational motions, and response to external stimuli such as temperature, pressure, and magnetic and electric fields. NMR spectroscopy of liquid crystals and of solutes dissolved in liquid crystals is described. The molecular structure and dynamic information that can be obtained from such studies is outlined.