Abstract
Liquid crystalline samples differ from normal liquids in possessing long-range orientational order. For convenience only uniaxial phases such as the nematic and smectic A phases will be considered; the biaxial phases have been extensively studied by NMR and such work has been recently reviewed.1 For a collection of rigid molecules the extent of orientational ordering is characterized by a singlet orientational distribution function,2 f(Ω), which may be expressed as a linear combination of Wigner rotation matrices, D L(Ω), where Ω represents the three Euler angles made by axes fixed in the molecule and the mesophase director.
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© 1985 Elsevier Applied Science Publishers Ltd
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Emsley, J.W. (1985). Measurement of Orientational Order in Liquid Crystalline Samples by NMR Spectroscopy. In: Chapoy, L.L. (eds) Recent Advances in Liquid Crystalline Polymers. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4934-8_15
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DOI: https://doi.org/10.1007/978-94-009-4934-8_15
Publisher Name: Springer, Dordrecht
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