Two-Point Cooperative Binding of Ketones by a Metal and by a Neighboring Pendant NH Group
作者:Karin Gruet、Robert H. Crabtree、Dong-Heon Lee、Louise Liable-Sands、Arnold L. Rheingold
DOI:10.1021/om000115b
日期:2000.5.1
of ketones such as acetone and 2-hexanone in a two-point fashion via a coordinate Ir−O bond and an N−H···O hydrogen bond. This two-point binding orients the ketone so that the fluxional exchange of the two distinct methyl groups in the acetone complex is strongly slowed relative to the situation where the pendant NH2 group is absent. In addition, certain substrates, such as 3-hexanone, can form complexes