Synthesis and Characterization of Rhena[10]annulynes
Synthesis and Characterization of Rhena[10]annulynes
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DOI：
10.1039/d2qi00463a
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发表时间：
2022
影响因子：
7
通讯作者：
Jiangxi Chen
中科院分区：
文献类型：
--
作者：
Qiang Cao;Ping Wang;Yuanting Cai;Yuhui Hua;Shaohui Zheng;Xu Cheng;Guomei HE;Ting-Bin Wen;Jiangxi Chen
Most reported metallacycles are limited to small cyclic complexes that contain six-membered or smaller rings. Larger-membered metallacycles are still rare and mainly focus on dimetallacycles. Herein, we report the first rhena[10]annulyne, a ten-membered metallacycle with a single metal center. The complex was isolated by the treatment of a silyl alkyne tethered rhenium vinyl carbyne complex with tetrabutylammonium fluoride. Its structure was identified by single-crystal X-ray diffraction and NMR studies. DFT calculation studies suggest that there is a thermodynamic origin for the conversion of the rhenavinylcarbyne complex to a rhena[10] annulyne. The rhena[10]annulyne represents a new metallacycle bearing a large ten-membered ring.
