化学这门学科,从研究对象来分,可以分为无机化学和有机化学二大类。过去,一般认为无机化学是研究无生命物质的化学,有机化学是研究有生命物质的化学。W(o|¨)hler从氰酸铵合成尿素的工作,第一次从无机物制备了有机物,沟通了这二大类化学,但是,多少年来这二门化学的界线仍然明显地存在着。随着人类认识的发展,近年来这一界线已被突破,例如,过去作为无机化学研究对象的少数稀有金属,如铁、钴、镁、钼等,它们在生物体的新陈代谢中起着极为重要的作用,因此,机械地、人为地划分无机化学和有机化学,已无可能。而且,近年来在化学反应的研究方面,无机化学和有机化学的相互渗透,更是层出不穷。无机化学和有机化学的相结合,出现了一门交界学科,即金属有机化学。近二十年来,这门学科飞速发展,已成为当前最活跃的化学领域之 Chemistry of this discipline, from the research object to points, can be divided into two categories of inorganic chemistry and organic chemistry. In the past, inorganic chemistry was generally considered as a chemistry for studying inanimate matter, and organic chemistry was a chemistry for studying living matter. W (o | ¨) hler urea from ammonium cyanate work, for the first time from the preparation of organic matter from inorganic matter, to communicate these two categories of chemistry, but for many years the two chemical boundaries are still clearly there. With the development of human cognition, this boundary has been broken in recent years. For example, a few rare metals such as iron, cobalt, magnesium and molybdenum which used to be the object of inorganic chemistry in the past have played an extremely important role in the metabolism of organisms Therefore, it is impossible to mechanically and artificially divide inorganic chemistry and organic chemistry. Moreover, in recent years, in chemical reaction research, the mutual penetration of inorganic chemistry and organic chemistry is more and more emergent. Combination of inorganic chemistry and organic chemistry, there has been a discipline of interface, that is, metal organic chemistry. In the past 20 years, the rapid development of this discipline has become the most active chemical field