Ring inversion dynamics of derivatives of thianthrene di- and tetraoxide |
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Authors: | Casarini Daniele Coluccini Carmine Lunazzi Lodovico Mazzanti Andrea |
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Institution: | Department of Chemistry, University of Basilicata, Potenza, Italy. |
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Abstract: | The ring inversion barrier for thianthrene tetraoxide was determined by making use of the variable temperature 13C NMR spectra of the 2,7-diisopropyl derivative (DeltaG(double dagger) = 6.5 kcal mol(-1)). The barrier is lower than that measured for a trans thianthrene dioxide derivative (DeltaG(double dagger) = 9.35 kcal mol(-1)). These results agree well with ab initio theoretical predictions. |
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