Titlebook: Nuclear Magnetic Resonance of Liquid Crystals; J. W. Emsley Book 1985 D. Reidel Publishing Company, Dordrecht, Holland 1985 Diffusion.NMR.

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Studies of Solutes with Internal Rotors,nique have been extensively discussed (1). We review briefly the difficulties: the spectral complexity limiting the analyzable spin systems, the solute-solvent interactions and the difficult rationalization of the data in terms of separate structural and orientational parameters.

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Molecular Structure from Dipolar Coupling, is based on the last term of the following effective Hamiltonian: . where . is the well known indirect coupling constant and . is the sum of the pseudo dipolar coupling, ., and the dipolar or direct coupling D.. The dipolar coupling is defined as

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On the Orientation of Small Molecules in Anisotropic Solvents,sy to account for the effects of internal motion completely satisfactorily. For solutes with large-amplitude intramolecular motions the problem of how to treat their average orientation has given rise to some controversy. A first attempt to phrase the problem in terms of a kinetic approach in which

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Multiple Quantum NMR in Liquid Crystalline Phases,issolved in mesogenic solvents, magnetic interactions are functions of geometric factors and order parameters. The geometric factors relate elements of a magnetic interaction tensor in some principal axis system (pas) to a molecule-fixed frame, and so provide information on molecular structure, whil

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