[M(GaCp*)4] (M = Pd, Pt) as Building Blocks for Dimeric Homoleptic Cluster Compounds of the Type [MPt(GaCp*)5]
摘要:
The monomeric homoleptic Pt(O) complex [Pt(GaCp*)(4)] (1) has been synthesized by reaction of [Pt(COD)(2)] with GaCp* in hexane. The monomeric homoleptic NO complexes [Pd(GaCp*)(4)] (2) and [Pd{InC(SiMe3)(3)}(4)] (3) are accessible by reaction of [Pd(tmeda)(CH3)(2)] with GaCp* and [InC(SiMe3)(3)], respectively. These reactions were shown to proceed via methyl group transfer from palladium to indium. or gallium, respectively. Complexes 1 and 2 can be used as building blocks for the synthesis of dinuclear cluster compounds. Thus, reaction of [Pt(COD)(2)] with 1 or 2 and subsequent addition of GaCp* yields [Pt-2(GaCp*)(2)(mu(2)-GaCp*)(3)] (4a) and [PtPd(GaCp*)(mu(2)-GaCp*)(3)] (5a). Intermediates of this dimerization reactions, i.e., [Pt-2(GaCp*)(mu(2)-GaCp*)(3)(eta(2)-COD)] (4b) and [PtPd(GaCp*)(mu(2)-GaCp*)(3)(eta(2)-COD)](5b), were isolated and characterized by means of variable-temperature NMR spectroscopy.
Insertion of organoindium carbenoids into rhodium halide bonds: revisiting a classic type of transition metal–group 13 metal bond formation
作者:Tobias Steinke、Christian Gemel、Mirza Cokoja、Manuela Winter、Roland A. Fischer
DOI:10.1039/b301928d
日期:2003.4.16
Insertion of the carbenoid group 13 metal species InCp* (Cp* = pentamethylcyclopentadienyl) and InC(SiMe3)3 into the Rh-Cl bonds of [[RhCp*Cl2]2] yields the new complexes [Cp*Rh(InCp*)3(Cl)2] 1 and [Cp*Rh(mu2-Cl)2(InC(SiMe3)3)3] 2, respectively, exhibiting novel cage-like intermetallic complexes with In-Cl-In bridges.
[M(GaCp*)<sub>4</sub>] (M = Pd, Pt) as Building Blocks for Dimeric Homoleptic Cluster Compounds of the Type [MPt(GaCp*)<sub>5</sub>]
作者:Christian Gemel、Tobias Steinke、Dana Weiss、Mirza Cokoja、Manuela Winter、Roland A. Fischer
DOI:10.1021/om021003i
日期:2003.6.1
The monomeric homoleptic Pt(O) complex [Pt(GaCp*)(4)] (1) has been synthesized by reaction of [Pt(COD)(2)] with GaCp* in hexane. The monomeric homoleptic NO complexes [Pd(GaCp*)(4)] (2) and [PdInC(SiMe3)(3)}(4)] (3) are accessible by reaction of [Pd(tmeda)(CH3)(2)] with GaCp* and [InC(SiMe3)(3)], respectively. These reactions were shown to proceed via methyl group transfer from palladium to indium. or gallium, respectively. Complexes 1 and 2 can be used as building blocks for the synthesis of dinuclear cluster compounds. Thus, reaction of [Pt(COD)(2)] with 1 or 2 and subsequent addition of GaCp* yields [Pt-2(GaCp*)(2)(mu(2)-GaCp*)(3)] (4a) and [PtPd(GaCp*)(mu(2)-GaCp*)(3)] (5a). Intermediates of this dimerization reactions, i.e., [Pt-2(GaCp*)(mu(2)-GaCp*)(3)(eta(2)-COD)] (4b) and [PtPd(GaCp*)(mu(2)-GaCp*)(3)(eta(2)-COD)](5b), were isolated and characterized by means of variable-temperature NMR spectroscopy.