半个世纪以来,晶体结构的资料是分子立体构型知识的重要来源。电子衍射和光谱方法也是研究分子立体构型的重要方法,而近年来磁共振在研究分子立体构型问题中的作用也已越来越显著。但这篇文章将主要结合最近十年晶体结构分析工作的进展来阐述分子的立体构型问题,首先将阐述分子的立 For half a century, information on crystal structure has been an important source of knowledge of molecular stereoconfiguration. Electron diffraction and spectroscopic methods are also important methods for studying the stereostructure of molecules. In recent years, the role of magnetic resonance in the study of molecular stereoconfiguration has become more and more obvious. However, this article will mainly combine the recent ten years of progress in the analysis of crystal structure to elucidate the three-dimensional configuration of the molecule, first of all,