Add time:09/04/2019         Source:sciencedirect.com

Over the past decade, the chemistry of σ-accepting or Z-type ligands based on main group elements has drawn renewed attention because of the realization that their interaction with a transition metal (M) could be used to control the reactivity of the metal center. In this article, we describe several conceptual models that have been developed to understand the properties of main group-based Z-type ligands. We also explain how these models can be applied to the design of new coordination platforms where the electron-accepting properties of the Z-type ligand can be adjusted via postsynthetic transformations occurring at the main group element. Last, we show that the M → Z interaction and its tunable nature offer unique opportunities in the domain of ligand-controlled organometallic catalysis.

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