Restricted rotation has been observed by NMR spectroscopy at very low temperature in isopropyladamantane, 1-tert-butyl-3-isopropyladamantane, and 1,3-diisopropyladamantane. The barriers for the corresponding dynamic processes were also determined. In the case of the disubstituted adamantane derivatives, two and four conformers, respectively, were observed and they were assigned on the basis of the
通过NMR光谱在非常低的温度下在异丙基
金刚烷,1-叔丁基-3-异丙基
金刚烷和1,3-
二异丙基金刚烷中观察到旋转受限。还确定了相应动态过程的障碍。在二取代的
金刚烷衍
生物的情况下,分别观察到两个和四个构象异构体,并根据对称性质进行分配。相对人口偏离统计分布。