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

元素周期表的s区包含几种便宜的、地球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-区金属配合物的化学已经取得了许多进展，包括新型金属氢化物配合物，具有不寻常的碱性和亲核片段的新的稳定化合物，以及反应性低氧化态物种。这些配合物中的许多为反应性和催化提供了新的途径。这个项目将扩展和推进具有新颖分子片段的定义明确的s-区金属配合物的化学。它将包括合成和表征，例如通过NMR光谱和X射线单晶衍射研究新的和新颖的复合物及其进一步的反应性的研究。空间要求高的配体将被用来稳定不寻常的无机和有机金属分子片段。具体的目标包括新的金属氢化物片段，新的亲核分子片段和新的罕见的低氧化态物种涉及s-区元素。空间要求高的配体的范围将包括β-二酮亚胺配体和其它阴离子和中性N-配体，例如膦酰胺和亚氨基膦。将研究新合成物质的反应性，例如对一系列有机底物和小分子（包括工业相关气体）的反应性。

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.