Molecular Structure of Cyclobutane from Its Proton NMR in a Nematic Solvent
It is now well known that the nematic phase provides an anisotropic environment for solute molecules which permits high resolution NMR spectra.1 The major structure of these solute NMR spectra is due to the intramolecular magnetic dipole-dipole interaction, which does not average to zero in an anisotropic environment. Because the dipole-dipole interaction depends on the inverse cube of the distance between the nuclei, it provides information on molecular structure. The structure of several molecules has been determined from NMR in nematic solvents, including acetonitrile, methyl fluoride, benzene, cyclopropane, and bicyclobutane.2
KeywordsSolute Molecule Nematic Phase Spin HAMILTONIAN Parameter Bell Telephone Laboratory Equivalent Conformer
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