Solids, Complexes, and Clusters

The chalcogens have a rich metal chemistry both in molecular compounds and in the solid state, on account of their ability to catenate and to bind to multiple metal centers. 

The term nanosized cluster or nanocluster or simply cluster is used presently to denote a particle of any kind of matter, the size of which is greater than that of a typical molecule, but is too small to exhibit characteristic bulk properties. Such particles enter the size regime of mesoscopic materials. 

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