The Close and Loose Relationship between Carbon and Phosphorus

报告人： Manfred Scheer

时间： 2025年5月6日 （星期二）上午10：00

地点： 南京工业大学江浦校区化学学科楼四楼报告厅

报告人简介： Manfred Scheer，德国雷根斯堡大学教授，英国皇家化学学会院士和德国国家科学院院士。曾获有机磷化学领域国际ARBUZOV奖-2017年（由俄罗斯鞑靼斯坦共和国总统颁发）。曾任RSC杂志Chemical Communications副主编，担任《无机化学前沿》杂志国际顾问委员会成员。以第一或通讯作者在Science、J. Am. Chem. Soc.、Nat. Commun.、Angew. Chem.等杂志发表SCI论文。主要从事新型亚稳态固体、纳米粒子和材料的分子前体开发、具有过渡金属元素多重键的高反应性化合物制备、具有多聚体配体复合物的超分子化学以及混合主族元素化合物作为功能化材料等研究。

报告摘要： Polyphosphorus units are an important class of compound and isolobal to carbon-based relatives. Because of the lone pairs at the phosphorus atoms, the five-fold symmetric cyclo-P5 ring of the pentaphosphaferrocenes [CpRFe(η5-P5)] enables the use of these complexes in unique supramolecular aggregations with Lewis acidic transition metal moieties to form unprecedented giant spherical molecules. The talk will show versatile ways of the reactivity of this interesting class of compounds regarding their redox behavior as well as their ability to be converted by both nucleophiles and electrophiles. Concerning the redox properties, novel insights into E-E bond formation and breaking are presented. The frontier orbitals of polypnictogen ligand complexes show clearly the ability to be converted by both nucleophiles and electrophiles. Therefore, novel ways of access to substitution reactions and subsequent quenching result in unique pathways for the selective formation e.g. of asymmetric phosphines.