Structure and Bonding in Neutral and Cationic 14‐Electron Gold Alkyne π Complexes
作者:Susanne Flügge、Anakuthil Anoop、Richard Goddard、Walter Thiel、Alois Fürstner
DOI:10.1002/chem.200901062
日期:2009.8.24
Cyclododecyne (5) as a prototype unstrained alkyne was coordinated to either the neutral [AuCl] fragment or to two different cationic [Au(NHC)]+ entities (NHC=N‐heterocyclic carbene), and the resulting complexes 6, 8, and 10 were characterized by X‐ray crystallography and NMR spectroscopy. Since the structure of cyclododecyne in the solid state could also be obtained after in situ crystallization,
环十二炔( 5 ) 作为原型无应变炔烃与中性 [AuCl] 片段或两种不同的阳离子 [Au(NHC)] +实体 (NHC=N-杂环卡宾) 配位,得到配合物6、8和10用 X 射线晶体学和核磁共振光谱对其进行了表征。由于固态环十二炔的结构也可以在原位结晶后获得,因此可以进行比较,以深入了解不同金碎片对炔烃施加的结构变化。这些数据是基于对单个化合物中键合情况的 DFT 分析进行解释的,这为许多金催化转化常见的第一个基本步骤提供了见解。