The Coordination Chemistry of “[BP<sub>3</sub>]NiX” Platforms: Targeting Low-Valent Nickel Sources as Promising Candidates to L<sub>3</sub>NiE and L<sub>3</sub>Ni⋮E Linkages
作者:Cora E. MacBeth、J. Christopher Thomas、Theodore A. Betley、Jonas C. Peters
DOI:10.1021/ic049936p
日期:2004.7.1
electron-releasing, monoanionic tris(phosphino)borate ligands [PhBP3] and [PhBPiPr3] ([PhBP3] = [PhB(CH2PPh2)3]-, [PhBPiPr3] = [PhB(CH2PiPr2)3]-) have been synthesized to explore fundamental aspects of their coordination chemistry. The pseudotetrahedral, divalent halide complexes [PhBP3]NiCl (1), [PhBP3]NiI (2), and [PhBPiPr3]NiCl (3) were prepared by the metalation of [PhBP3]Tl or [PhBPiPr3]Tl with (Ph3P)2NiCl2, NiI2
由释放电子的单阴离子三(膦)硼酸酯配体[PhBP3]和[PhBPiPr3]([PhBP3] = [PhB(CH2PPh2)3]-,[PhBPiPr3] = [PhB(CH2PiPr2)3]-)已合成,以探讨其配位化学的基本方面。伪四面体二价卤化物配合物[PhBP3] NiCl(1),[PhBP3] NiI(2)和[PhBPiPr3] NiCl(3)是通过[PhBP3] Tl或[PhBPiPr3] Tl与(Ph3P)2NiCl2的金属化制备的,NiI2和(DME)NiCl2(DME = 1,2-二甲氧基乙烷)。配合物1是可通过取代反应访问的一系列配合物的多用途前体,包括[PhBP3] Ni(N3)(4),[PhBP3] Ni(OSiPh3)(5),[PhBP3] Ni(Op-tBu-Ph)( 6)和[PhBP3] Ni(Sp-tBu-Ph)(7)。配合物2-5和7已经通过X射线衍射(XRD)