Synthesis and Reactivities of Silanone Transition-metal Complexes

2016 Fiscal Year Final Research Report

• Project/Area Number: 26410066
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic chemistry
• Research Institution: Gunma University
• Principal Investigator: UENO KEIJI 群馬大学, 大学院理工学府, 教授 (20203458)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: シラノン錯体 / シリレン錯体 / 不飽和ケイ素化学種 / 反応性 / 合成 / タングステン錯体 / モリブデン錯体

Outline of Final Research Achievements

Silanonetungsten and -molybdenum complexes were successfully synthesized by oxygenation of silyl(silylene) complexes with 1 eq of pyridine-N-oxide (PNO) in the presence of 4-(dimethylamino)pyridine (DMAP). The reactivities of the silanone complexes were investigated with MesCNO, cyclotrisiloxane, MeOH, and H2O. Reaction with H2O afforded different main products for the tungsten and molybdenum complexes. Theoretical investigation revealed that the product difference arises from the difference of electrophilicity of the silicon atom in silanone ligand and that of the lability for oxidative addition of water across the M-silanone framework.

Free Research Field

有機金属化学