有机化学研究的一项重要工作就是确定有机化合物的分子结构。确定分子结构有化学方法与物理方法,化学方法是利用有机物官能团的特征反应,以确定该化合物所含官能团,还可利用化学反应进行衍生化,通过确定衍生物的结构进一步推断原分子的结构。化学方法比较麻烦、耗时、消耗样品较多。而现代物理方法因所需样品量少、速度快、准确,甚至可以确定分子的三维空间结构,而显 An important task in organic chemistry is to determine the molecular structure of organic compounds. To determine the molecular structure of chemical methods and physical methods, chemical methods is the use of organic functional groups of the characteristic reaction to determine the functional groups contained in the compound, but also the use of chemical derivatization derivatization, by determining the structure of the derivative to further infer the original structure of the molecule. Chemical method is more cumbersome, time consuming, consuming more samples. The modern physical methods because of the required sample size, speed, accuracy, and even to determine the molecular structure of the three-dimensional, and significant