The Application of Nuclear Magnetic Resonance in the Study of the Conformational Equilibria of Cyclic Compounds

The NMR spectroscopic methods used to investigate mobile conformational equilibria and to determine the rate constants are discussed. A critical comparison has been made of the accuracy of the results obtained by high-resolution and spin-echo NMR methods. A systematic account of the thermodynamic parameters of the ring inversion of cyclic compounds obtained by NMR methods has been given. The possibility of employing NMR spectra for the determination of conformational equilibrium constants is discussed.
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