Cluster compounds hetero-atomic clusters

The carbide-centered polynuclear transition-metal carbonyl clusters exhibit a rich variety of structures. A common feature to this class of carbide complexes is that the naked carbon is wholly or partially enclosed in a metal cage composed of homo/hetero metal atoms, and there is also a subclass that can be considered as tetra-metal-substituted methanes. The earliest known compound of this kind is FesC(CO)i5, in which the carbon atom is located at the center... 

Bi et al. [39] reported an interesting study of six new hetero-poly-compoimds in the pVUCHzOMAsaW, 5056)2]series (M = Cu(II), Mn(n), Coai), Ni(II), Zn(n), Cd(II)). The two copper atoms of the C114O16 cluster are coordinated by water molecules. The replacement reactions of the coordinated water molecules of this series of hetero-poly-compounds in aqueous solutions and in selected organic solvents were reported. The results showed that [Fe(CN)6] > [Fe(CN>6], H2NCH2CH2NH2, etc., can replace the coordinated water to form its... 

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