Synthesis, characterisation and reactivity studies of unusual ligand-stabilised p-block element complexes

异常配体稳定的 p 区元素配合物的合成、表征和反应性研究

• 批准号: 2090097
• 金额: --
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2090097
• 关键词: Synthesis; characterisation; reactivity; studies; unusual

The p-block of the periodic table contains several cheap and Earth abundant elements commonly used for synthesis and catalysis. Main group chemistry has seen great advances in the past two decades with the realisation of new concepts in the stabilisation of highly unusual compounds by novel, sterically demanding groups and ligands, and the implementation of novel approaches to reactivity, for example with low oxidation state species and frustrated Lewis pairs. This project will study several aspects of novel chemistry with ligand-stabilised p-block elements, mainly of groups 13-15 of the periodic table. This will include the synthesis, characterisation and associated reactivity studies of low oxidation state compounds stabilised by a series of sterically demanding ligands such as B-diketiminates, anionic iminophosphoranes, phosphinoamides and other N- and C-ligands, e.g. N-heterocyclic carbenes. This is envisaged to yield novel compounds with element-element bonds and/or non-bonding electrons such as lone pairs. Another concept to be tested will be the synthesis, characterisation and reactivity of p-block element hydride sources, ideally based on non-metal systems (e.g. phosphoranes). All project will include the synthesis and characterisation (e.g. by NMR spectroscopy and X-ray single crystal diffraction studies) of new and novel compounds and the study of their further reactivity. Sterically demanding ligands will be employed to stabilise unusual inorganic and organometallic molecular fragments. Ligands can be tailored with respect to their steric and electronic parameters. The reactivity of new species will be investigated for example towards a range of organic substrates and small molecules including industrially relevant gases.

元素周期表的p块包含几种廉价和地球的丰富元素，通常用于合成和催化。在过去的二十年中，主要的群体化学取得了巨大进步，随着新概念的实现，在新型，苛刻的群体和配体对高度不寻常的化合物稳定中，以及实施新颖的反应方法，例如，氧化态种类低，而Lewis Pairs沮丧。该项目将使用配体稳定的P块元素（主要是元素周期表13-15组）研究新化学的几个方面。这将包括低氧化态化合物的合成，表征和相关的反应性研究，该化合物通过一系列含有空间苛刻的配体，例如B-二键型，阴离子酰磷酸磷酸，磷酸胺和其他N-和C-配体，例如。 N-核细胞碳纤维。可以预见，这可以产生具有元素元素键和/或非键入电子（例如孤对）的新型化合物。要测试的另一个概念将是P-Block元素Hydride源的合成，表征和反应性，理想情况下基于非金属系统（例如磷酸酶）。所有项目都将包括新化合物和新化合物的合成和表征（例如，通过NMR光谱和X射线单晶体衍射研究）以及对它们的进一步反应性的研究。在空间上要求的配体将用于稳定异常的无机和有机金属分子片段。配体可以根据其空间和电子参数量身定制。例如，将研究新物种的反应性，例如对包括工业相关气体在内的一系列有机底物和小分子。