Tobias Steinke

Ligand properties of Cp*Ga: new examples of Mo–Ga and W–Ga complexes

The compounds [ fac -(Cp*Ga) 3 M(CO) 3 ] ( 1a , M=Mo: 1b , M=W) were synthesized by reaction of [ fac -(RCN) 3 M(CO) 3 ] (R=Me, Et) with Cp*Ga. The treatment of 1a with one equivalent of [ fac -(MeCN) 3 Mo(CO) 3 ] gives the dimeric cluster compound [Mo 2 (CO) 6 (μ 2 -(GaCp*)) 3 ] ( 2 ). Addition of Cp*Ga to the Lewis-acidic unsaturated metal centres of [CpM(CO) 2 ] 2 (M=Mo, W) yields the dimeric complexes [(OC) 2 (Cp)M(μ 2 -(η 1 -GaCp*))] 2 ( 3a : M=Mo, 3b : M=W). The new compounds 1 – 3 were characterized fully including single crystal X-ray diffraction studies.

Insertion of organoindium carbenoids into rhodium halide bonds: revisiting a classic type of transition metal–group 13 metal bond formation

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.