期刊
ORGANOMETALLICS
卷 39, 期 5, 页码 757-766出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.organomet.0c00025
关键词
-
资金
- NSF China [21971151/21572119]
- NSF Shandong [ZR2019ZD46]
The bis(silylene)-based SiC(sp(3))Si pincer ligand N,N'-bis(LSi:)dipyrromethane [SiCH2Si] (Ll; L = PhC(NtBu)(2)) with a C(sp(3)) atom anchor was synthesized, and its coordination chemistry to iron was studied. Two novel iron hydride complexes, [SiCHSi]Fe(H)(N-2)(PMe3) (1) and [SiCHSi]Fe(H)(PMe3)(2) (2), were synthesized in the reaction of L1 with Fe(PMe3)(4) via C(sp(3))-H bond activation under different inert atmospheres (N-2 and argon). To the best of our knowledge, 1 and 2 are the first examples of a bis(silylene)-based hydrido pincer iron complex produced through activation of a C(sp(3))-H bond. At the same time 1 is also the first example of a TM dinitrogen complex supported by a bis(silylene) ligand. The interconversion between 1 and 2 was achieved and monitored by operando IR and P-31 NMR spectra to understand the transformation from 1 to 2 from the viewpoint of kinetics. To our delight, 1 could effectively catalyze silylation of dinitrogen and gave the highest turnover number so far among all the Fe-catalyzed N-2 silylation systems at room temperature and under atmospheric dinitrogen.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据