Proton magnetic resonance spectra and conformational properties of spiro[2.5]octan-6-ol

Add time:09/24/2019    Source:sciencedirect.com

The free energy difference (-ΔG0) for the axial-equatorial conformational equilibrium of spiro[2.5]octan-6-ol in CS2 has been found with the aid of PMR spectra taken at low temperatures, to be 0.79 kcal mole−1 at −75° C. An Arrhenius activation energy of ring inversion of 14.4 ± 1.3 kcal mole−1 has been obtained by the variable-temperature NMR total line-shape method.

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