摘要
自由状态的CO,C—O键长为1.129A。在羰基配合物分子中,配体CO的C—O键长为1.15A(指四羰基合镍)。键长拉长了0.021A。本文从分析羰基配合物的结构,由于形成δ—π键,加强了中心原子与配体之间的结合力,作为健长拉长的依据。
The bond distance of C-O is 1. 129 A in free state of carbon monoxide and the bond distance of carbonyl group in Ni(CO)4 is 1. 15A The bond distance is extended for0. 021A This paper an-alyzed the structure of carbonyl complex compound and thinks the reason that the bond distance is extended is that the form-ation of bond δ-π stren-thenes the binding-power betwen central atom and carbonyl group
