Internal molecular disorder in the nematic and smectic phases of thermotropic liquid crystals studied by NMR SPDE experiments |
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| Authors: | N Boden YK Levine D Lightowlers RT Squires |
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| Institution: | Department of Physical Chemistry, University of Leeds, Leeds LS2 9JT, UK |
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| Abstract: | The recently developed NMR SPDE experiment is shown to provide a new and particularly convenient technique for probing the conformational dynamics of mesogens in thermotropic liquid crystals. Measurements have been made in the nematic and smectic phases of the 4,4′-di-n-alkoxyazoxybenzenes. It is shown for the first time that the internal disorder of the alkyl end chains is intimately related to the molecular organization of these mesophases. |
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