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N-Heterocyclic carbenes as tunable ligands for catalytic metal surfaces
Nature Catalysis ( IF 37.8 ) Pub Date : 2021-05-07 , DOI: 10.1038/s41929-021-00607-z
Maximilian Koy , Peter Bellotti , Mowpriya Das , Frank Glorius

Heterogeneous catalysts represent the backbone of many industrial processes and thus have a considerable societal impact. The active sites of these heterogeneous catalysts are often metal surfaces, which consist of a large ensemble of metal atoms, and their properties differ significantly from metal complexes bearing highly developed ligands typically used in homogeneous catalysis. A highly interesting approach is the combination of these sophisticated ligand systems from homogeneous catalysis with metal surfaces to improve parameters such as stability, reactivity and selectivity. One class of these advanced ligands is N-heterocyclic carbenes (NHCs), which have been increasingly applied as molecular modifiers for metal surfaces. This review summarizes developments in this area, covering fundamental properties, preparation methods, important analytical techniques and reactions of NHC-modified metal surfaces. Emerging strategies for NHC design are categorized and future directions are outlined.



中文翻译:

N-杂环卡宾作为催化金属表面的可调配体

非均相催化剂代表了许多工业过程的骨干,因此具有相当大的社会影响。这些非均相催化剂的活性部位通常是金属表面,由大量的金属原子组成,它们的性能与带有通常在均相催化中使用的高度发达的配体的金属配合物明显不同。一种非常有趣的方法是将这些复杂的配体系统(来自均相催化)与金属表面相结合,以改善诸如稳定性,反应性和选择性之类的参数。这些高级配体中的一类是N-杂环卡宾(NHC),它们已越来越多地用作金属表面的分子改性剂。这篇综述总结了该领域的发展,涵盖了基本特性,制备方法,NHC改性金属表面的重要分析技术和反应。对NHC设计的新兴策略进行了归类,并概述了未来的发展方向。

更新日期:2021-05-07
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