如果说20世纪上半叶的化学主要是采用宏观实验方法来研究,那么下半叶的化学就是微观方法与宏观方法相互结合相互渗透。所谓微观方法主要指在原子分子水平上对化学现象本质进行理论和实验研究。在世纪之交的今天,这两种方法的结合已经形成一种世界性潮流。我国大学有幸在50年代初期就开设了“物质结构”与“结晶化学”等课程,在化学教学计划中引入化学键理论和结构化学的内容,很快赶上了这一世界潮流。当时全世界第一流大学 If the chemistry of the first half of the twentieth century was mainly studied by macroscopic experimental methods, then the chemistry of the second half of the world would be the combination of microscopic methods and macroscopic methods. The so-called micro-method mainly refers to the theoretical and experimental study on the nature of chemical phenomena at the atomic molecular level. At the turn of the century, the combination of these two approaches has formed a worldwide trend. Our university was fortunate enough to open the courses of “Material Structure” and “Crystallization Chemistry” in the early 1950s. By introducing the chemical bond theory and structural chemistry into the chemistry teaching program, it quickly caught up with the world trend. At that time the world’s top universities