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  • Ring inversion dynamics of derivatives of thianthrene di- and tetraoxide.

Ring inversion dynamics of derivatives of thianthrene di- and tetraoxide.

The Journal of organic chemistry (2006-07-29)
Daniele Casarini, Carmine Coluccini, Lodovico Lunazzi, Andrea Mazzanti
摘要

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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