从“电荷转移”到“σ-空穴”:卤键概念的形成和发展

From"Charge Transfer"to"σ-hole":the Formation and Development of the Halogen Bond Concept

19世纪,许多含卤键的物质被发现,但人们并未意识到卤键的存在。1950年,美国化学家Mulliken提出了电荷转移理论,这一理论使人们对卤键本质有了初步的认识,促使了卤键概念的形成。2007年,美国化学家Politzer等提出了σ-空穴理论,该理论使人们更深入理解了卤键本质,促进了卤键概念的发展。卤键理论不仅适用于卤键,也适用于其他分子间作用力。随着卤键等分子间作用力的广泛研究,卤键概念会更清晰,卤键理论也会有更广阔发展的前景。

In the 19th century,many halobonded substances were discovered,but people didn"t realize that halogen bond existed.In 1950,American chemist Mulliken put forward the theory of charge transfer.The theory of charge transfer makes people have a preliminary understanding of the nature of halogen bond and promotes the formation of the concept of halogen bond.In 2007,American chemist Politzer et al.proposedσ-hole theory.Theσ-hole theory makes people understand the nature of halogen bond more deeply and promotes the development of halogen bond concept.Halogen bond theory applies not only to halogen bond but also to other intermolecular interactions.With the extensive study of intermolecular forces such as halogen bond,the concept of halogen bond will be clearer and the halogen bond theory will have a broader prospect.