作者:Daniele Casarini、Carmine Coluccini、Lodovico Lunazzi、Andrea Mazzanti
DOI:10.1021/jo0606610
日期:2006.8.1
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 (ΔG⧧ = 6.5 kcal mol-1). The barrier is lower than that measured for a trans thianthrene dioxide derivative (ΔG⧧ = 9.35 kcal mol-1). These results agree well with ab initio theoretical predictions.
对于噻蒽四氧化环反转屏障是通过利用可变温度的确定13 2,7-二异丙基衍生物的C NMR谱(Δ ģ ⧧ = 6.5千卡摩尔- 1)。所述屏障是比用于测量的较低的反式噻蒽二氧化物衍生物(Δ ģ ⧧ = 9.35千卡摩尔- 1)。这些结果与从头算的理论预测非常吻合。