Taylor Laurence J, Kays Deborah L
School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
Dalton Trans. 2019 Sep 7;48(33):12365-12381. doi: 10.1039/c9dt02402f. Epub 2019 Jul 29.
Enforcing unusually low coordination numbers on transition metals with sterically demanding ligands has long been an area of interest for chemists. Historically, the synthesis of these challenging molecules has helped to elucidate fundamental principles of bonding and reactivity. More recently, there has been a move towards exploiting these highly reactive complexes to achieve a range of transformations using cheap, earth-abundant metals. In this Perspective, we will highlight selected examples of transition metal complexes with low coordination numbers that have been used in catalysis and the activation of small molecules featuring strong bonds (N, CO, and CO).
利用空间位阻较大的配体对过渡金属强制施加异常低的配位数，长期以来一直是化学家们感兴趣的领域。从历史上看，这些具有挑战性的分子的合成有助于阐明成键和反应性的基本原理。最近，人们开始转向利用这些高反应活性的配合物，使用廉价且储量丰富的金属来实现一系列转化。在这篇展望文章中，我们将重点介绍一些具有低配位数的过渡金属配合物的选定实例，这些配合物已被用于催化以及具有强键（N、CO和CO）的小分子的活化。
