Ho Luong Phong, Tamm Matthias
Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany.
Chemistry. 2022 Jun 15;28(34):e202200530. doi: 10.1002/chem.202200530. Epub 2022 Apr 27.
In this Concept article we provide a brief overview of the design and preparation of N-heterocyclic carbenes carrying weakly coordinating anions (WCA-NHCs). The anionic charge in these ligand systems is located on an exocyclic group, for example, B(C F ) , tethered to the backbone of the imidazole ring, thus resembling a weakly coordinating moiety. With the general guiding principle behind the application of WCA-NHCs being the conversion of otherwise cationic NHC complexes into their overall neutral congeners, numerous transition metal as well as main group element complexes were isolated during the last decade, which are summarized herein.
在本概念文章中，我们简要概述了带有弱配位阴离子的氮杂环卡宾（WCA-NHCs）的设计与制备。这些配体体系中的阴离子电荷位于连接到咪唑环骨架上的环外基团，例如B(CF) 上，因此类似于一个弱配位部分。由于WCA-NHCs应用背后的一般指导原则是将原本阳离子型的NHC配合物转化为其整体中性类似物，在过去十年中分离出了许多过渡金属以及主族元素配合物，本文对此进行了总结。
