Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier/CNRS UMR 5069, 118 Route de Narbonne, 31062, Toulouse Cedex, France.
Institut de Chimie de Toulouse ICT-FR2599, Université Paul Sabatier, 31062, Toulouse Cedex, France.
Angew Chem Int Ed Engl. 2017 Sep 25;56(40):12264-12267. doi: 10.1002/anie.201706197. Epub 2017 Aug 24.
The first Au carbene complex was prepared by reacting a geminal dianion with a (P,C) cyclometalated Au precursor. Its structure and bonding situation have been thoroughly investigated by experimental and computational means. The presence of a high-energy highest occupied molecular orbital (HOMO) centered at the carbene center suggests nucleophilic character for the Au carbene complex. This unprecedented feature was confirmed by reactions with two electrophiles (PhNCS and CS ), resulting in two types of C=C coupling reactions.
首例金卡宾复合物是通过反应一个偕二负离子与一个（P，C）环金属化金前体来制备的。其结构和键合情况已经通过实验和计算手段进行了彻底的研究。位于卡宾中心的高能最高占据分子轨道（HOMO）的存在表明金卡宾复合物具有亲核性。这一前所未有的特征通过与两个亲电试剂（PhNCS 和 CS ）的反应得到了证实，导致了两种类型的 C=C 偶联反应。
