Synthetic studies of unusual s-block metal complexes stabilised by sterically demanding ligands

元素周期表中的s位包含几种廉价的、地球上丰富的和生物相容的金属，如Na、K、Mg和Ca。在过去的几年里，定义明确的s位金属配合物的化学性质取得了许多进展，包括新型金属氢化物配合物，具有不寻常的碱性和亲核碎片的新稳定化合物，以及活性低氧化态物质。许多这些配合物为反应性和催化提供了新的途径。该项目将扩展和推进具有新分子片段的明确定义的s-嵌段金属配合物的化学。它将包括合成和表征，例如通过核磁共振波谱和x射线单晶衍射研究新的和新的配合物，并研究它们的进一步反应性。立体要求高的配体将用于稳定不寻常的无机和有机金属分子碎片。具体靶点包括新的金属氢化物碎片、新的亲核分子碎片和新的稀有低氧化态物质，包括s-嵌段元素。具有空间要求的配体包括-二酮酸配体和其他阴离子和中性n配体，如磷酸酰胺和亚磷酸烷。新合成物质的反应性将被研究，例如对一系列有机底物和小分子，包括工业相关气体。

The s-block of the periodic table contains several cheap, Earth abundant and biocompatible metals such as Na, K, Mg and Ca. The chemistry of well-defined s-block metal complexes has seen numerous advances in the past years including novel metal hydride complexes, new stable compounds with unusual basic and nucleophilic fragments, and reactive low oxidation state species. Many of these complexes have provided new approaches for reactivity and catalysis. This project will expand and advance the chemistry of well-defined s-block metal complexes with novel molecular fragments. It will include the synthesis and characterisation e.g. by NMR spectroscopy and X-ray single crystal diffraction studies of new and novel complexes and the study of their further reactivity. Sterically demanding ligands will be employed to stabilise unusual inorganic and organometallic molecular fragments. Specific targets include novel metal hydride fragments, novel nucleophilic molecular fragments and new rare low oxidation state species involving s-block elements. The range of sterically demanding ligands will include beta-diketiminate ligands and other anionic and neutral N-ligands such as phosphinoamides and iminophosphoranes. The reactivity of newly synthesised species will be investigated for example towards a range of organic substrates and small molecules including industrially relevant gases.