methylsilyl sulphide are measured for the liquid and solid states. The fundamental vibrations are assigned and the normal vibrations calculated for two possible rotational isomers about the Si-S bond. Two different solid spectra are obtained, one corresponding to the trans form and the other to the gauche form; the liquid spectrum shows the presence of both forms. The gauche form is more stable than the trans
摘要 测量了液态和固态的甲基甲基甲
硅烷基
硫化物的红外和拉曼光谱。分配基本振动并计算关于 Si-S 键的两种可能旋转异构体的法向振动。得到两种不同的固体光谱,一种对应于反式,另一种对应于gauche形式;液体光谱显示两种形式的存在。gauche 形式比液态的反式形式稳定 80 ± 50 cal mol -1 。结晶过程表明反式的冰点和熔点略高于gauche形式的冰点和熔点。