Abstract
Cp*IrH4 reacts with Hf(Np)4 (Np = CH2C(CH3)3) to yield the heterobimetallic complex [Hf(Np)3(μ-H)3IrCp*], 2. Treatment of 2 with neopentyl lithium (NpLi) results in the nucleophilic addition of a neopentyl moiety onto the Hf center, restoring Hf(Np)4 and displacing the Cp*IrH3– iridate fragment. By contrast, treatment of the tantalum/iridium analogue [Ta(Np)3IrH2(Cp*)], 1, with NpLi triggers the α-hydrogen abstraction at a Ta–neopentyl moiety and leads to the formation of the alkylidene -ate complex [Li][{Ta(CHtBu)(Np)2}{IrH2Cp*}], 4. The benzylidene analogue [K][{Ta(CHPh)(Np)2}{IrH2Cp*}], 5, is obtained upon reacting 1 with benzyl potassium. An unusual vinyl oxo species, [{Li(THF)3}Ta(O)(Np)2{μ-C2H3}IrH(Cp*)], 6, is formed when the reaction of 1 with NpLi is carried out in tetrahydrofuran (THF) due to THF fragmentation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
