| Abstract
| - Conformational preferences and electronic interactions of trans-2-fluorocyclopentanol (1), trans-2-chlorocyclopentanol (2), and trans-2-bromocyclopentanol (3) were analyzed using experimental and theoretical 3JHHcoupling constants, theoretical calculations, and natural bond orbital (NBO) analysis. The conformationalequilibria of compounds 1−3 can be represented by their diaxial and diequatorial conformers as supportedby theoretical calculations. From 3JHH coupling constant values, it can be found that the diequatorial conformeris present in the equilibrium as 55% for compound 1 and as 60% for compounds 2 and 3. This behavior isin agreement with orbital interaction analyses obtained from NBO.
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