Bonding between G12 and Late Main Group Metals

Bonding between G12 and Late Main Group Metals 

Based on the consideration that Zn and Ga are adjacent in the periodic table and in order to further explore the chemistry of M-Ga bonds, Jones et al. prepared a series of Zn-Ga-bonded complexes with the general formula [ (DAB)Ga ZnL ] or [ (DAB)GaJZnX] (DAB = N(Ar)C(H) 2  

Another important method to prepare Zn-Ga-bonded complexes has been developed by Fischer et al. The p-diketiminate Ga(I) complex [(DDP)Ga ] (DDP = Dippnacnac = [HC C(Me)N(2,6- 

Two cluster compounds that might contain Zn-Ga bonds have been obtained by Fischer s group [44]. [Mo(GaCp )g] (52) reacted with McjZn to afford a cluster compound of composition [MoZn Ga Me Cp ] (53), which converted into the cluster [MoZngGa2MegCp ] (54) after further reaction with MejZn. Due to the slight difference between the scattering power of Zn and Ga and uncertainty about the Me and Cp distribution around the Zn and Ga atoms, the exact crystal structure of these compounds could not be confirmed. Therefore, the structures were provisionally predicted by DFT calculations that indicate the existence of Zn-Ga bonds in both compounds. 

However, none of these products have been crystcillographically characterized. It is not until 2002 that first structural investigations on G12-Sn bonds were reported. Using the tripodtd ligand 

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