Synthesis and Characterization of PBP Pincer Iridium Complexes and Their Application in Alkane Transfer Dehydrogenation
收藏NIAID Data Ecosystem2026-03-10 收录
下载链接：
https://figshare.com/articles/dataset/Synthesis_and_Characterization_of_PBP_Pincer_Iridium_Complexes_and_Their_Application_in_Alkane_Transfer_Dehydrogenation/4431995
下载链接
链接失效反馈官方服务：
资源简介：
This work reports on the synthesis
of several new complexes of
Ir supported by a diarylboryl/bis(phosphine) PBP pincer ligand. The
previously reported complexes (PBP)Ir(Ph)(Cl) (1) and
(PBP)Ir(H)(Cl) (2) were converted to the new complexes
(PBP)IrH4 (3) and (PBP)Ir(Ph)(H) (4). Complexes 3 and 4 serve similarly as
precatalysts for transfer dehydrogenation of cyclooctane. The turnover
numbers achieved were relatively modest but were increased (to 220
at 200 °C) when 1-hexene was used as a sacrificial hydrogen acceptor
vs tert-butylethylene. The dicarbonyl complex (PBP)Ir(CO)2 (6) was also synthesized, by the reaction of
CO with either 3 or 4. Intermediates (PBPhP)Ir(H)(CO)2 (5) and (PBP)IrH2(CO) (7) were observed in these reactions. Complex
7 could be obtained in pure form by comproportionation of 3 and 6. Solid-state structures of 3 and 6 were determined by X-ray crystallography.
创建时间：
2016-12-15
