通过阴离子型氮杂环卡宾实现铋-铋双键的稳定化。
Stabilization of a bismuth-bismuth double bond by anionic N-heterocyclic carbenes.
作者信息
Ho Luong Phong, Tamm Matthias
机构信息
Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany.
出版信息
Dalton Trans. 2021 Feb 2;50(4):1202-1205. doi: 10.1039/d1dt00140j.
The bismuth dichloride complex (WCA-IDipp)BiCl2, which bears an anionic N-heterocyclic carbene ligand with a weakly coordinating borate moiety (WCA-IDipp, WCA = B(C6F5)3, IDipp = 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene), was prepared by salt metathesis reaction between BiCl3 and the lithium salt (WCA-IDipp)Li·toluene. Subsequent two-electron reduction with 1,4-bis(trimethylsilyl)-1,4-dihydropyrazine afforded the dibismuthene (WCA-IDipp)2Bi2, which displays a bismuth-bismuth double bond.
二氯化铋配合物（WCA-IDipp）BiCl₂带有一个带有弱配位硼酸酯部分的阴离子型N-杂环卡宾配体（WCA-IDipp，WCA = B(C₆F₅)₃，IDipp = 1,3-双(2,6-二异丙基苯基)咪唑啉-2-亚基），它是通过BiCl₃与锂盐（WCA-IDipp）Li·甲苯之间的盐复分解反应制备的。随后用1,4-双(三甲基硅基)-1,4-二氢吡嗪进行双电子还原得到二铋烯（WCA-IDipp）₂Bi₂，其具有铋-铋双键。
Zotero 插件