Reduction chemistry of En ligand complexes with maingroup and f-element compounds

本项目研究无取代多烟原配体配合物（En配体配合物）的还原行为，这是在本项目之前研究En配体配合物的反应性时迄今为止完全被忽视的一个领域。作为还原剂，s-嵌段金属，特别是f-元素被使用，通过新的反应类型产生具有前所未有结构的产品，为这类多方面物质的有机金属化学开辟了新的篇章。在该项目的第一阶段，特别是多磷配体配合物，如[Cp*Fe(η - 5- p5)]被采用，第一个多砷配合物被包括在这些研究中，导致新的阴离子多烟属化合物配合物，特别是前所未有的3d-4f金属多烟属化合物配合物。在项目的延长期间，这些工作将系统地继续并最终确定，特别侧重于多砷配合物的应用，以及多苯甲酸和多双烷配体配合物的应用。此外，系统地研究了En配体配合物分别与主族元素亲核试剂（2个电子供体和2个电子还原剂的形式相关体）和d-嵌段基有机金属化合物的反应行为，并对选择的后续反应进行了研究。因此，配体和配合物分别成为f-、s-和d-嵌段元素的有机金属化学中有价值的组成部分。

This project deals with the reduction behavior of substituent-freepolypnictogene ligand complexes (En ligand complexes), which is anarea that has so far been completely disregarded when investigatingthe reactivity of En ligand complexes before this project. As reductionagents, s-block metals, but in particular f-elements, are used, leadingto products with an unprecedented structure via novel reaction typesopening up a new chapter in the organometallic chemistry of thismultifaceted class of substances. In the first phase of this project, inparticular polyphosphorus ligand complexes such as for instance[Cp*Fe(η5-P5)] were employed, and first polyarsenic complexes wereincluded in these investigations leading to novel anionicpolypnictogenide complexes, but particularly to unprecedented 3d-4fmetalpolypnictogenide complexes. In the prolongation of the project,these works will be systematically continued and finalized with aspecial focus on the application of polyarsenic complexes but also ofpolystibane and polybismutane ligand complexes, respectively. Inaddition, the reaction behavior of En ligand complexes towardsnucleophiles (2-electron donators and formal related to 2 electronreductants) of main group elements and d-block-based organometalliccompounds, respectively, is systematically studied, and selectedsubsequent reactions are investigated. Thus, En ligand complexesbecome valuable building blocks in the organometallic chemistry of f-,s-, and d-block elements, respectively.