Synthesis and Characterization of the Tris(methylthio)sulfonium Salt [(CH<sub>3</sub>S)<sub>3</sub>S]<sup>+</sup>SbF<sub>6</sub><sup>-</sup><sup>1</sup>
作者:Rolf Minkwitz、Andreas Kornath、Wolfgang Sawodny、Volker Typke、Jerry A. Boatz
DOI:10.1021/ja9917518
日期:2000.2.1
[(CH3S)3S]+SbF6-, the first example of a trithiosulfonium salt saturated with organyl groups, was prepared from SH3+SbF6- and CH3SCl and characterized by 1H, 13C NMR, infrared, and Raman spectroscopy. The colorless salt is stable up to 10 °C, but solutions in SO2 decompose at −60 °C in a few hours. The structure of the cation was studied by ab initio calculations and a normal coordinate analysis based
[(CH3S)3S]+SbF6-,有机基饱和的三硫锍盐的第一个例子,由 SH3+SbF6- 和 CH3SCl 制备,并通过 1H、13C NMR、红外和拉曼光谱表征。无色盐在 10 °C 下是稳定的,但 SO2 中的溶液在 -60 °C 下会在几小时内分解。通过从头计算和基于四种附加同位素衍生物 [(CH334S)3S]+SbF6-、[(CH3S)334S]+SbF6-、[(13CH3S)3S]+SbF6 的正态坐标分析来研究阳离子的结构-, 和 [(CD3S)3S]+SbF6-。阳离子具有锥体三硫锍单元的 C3 对称性,预测几何参数为 r(SS) = 208.8 pm 和 ∠(SSS) = 104.06°。