Metal chains ligand supported

In this chapter, we describe linear metal chain compounds, consisting of at least three metal ions, supported by ligand systems. Extended metal atom chains (EMACs) of Cr, Co, Ni, and Cu, supported by polypyridylamide ligands, are discussed. This is followed by linear and bent Pd chains sandwiched by unsaturated hydrocarbons. Unsupported linear metal chain compounds are discussed in subsequent sections. Because synthetic protocols and the bonding schemes are different for different metals, our discussion is classified according to metal ions. 

In Chapter 5, M. Majumdar and J. K. Bera describe the properties of and synthetic protocols for preparing extended linear metal (Cr, Co, Ni and Cu) chain compounds that contain at least three metal ions and are supported by ligand systems. In addition, they describe bent Pd chains that are sandwiched between unsaturated hydrocarbons and unsupported linear metal chain compounds. 

The moiety denoted as I is the initiator group. It can be as simple as a free radical or as complicated as a transition metal atom bonded to organic ligands and located on a catalytic support. The next step in the polymerization is propagation, i.e., the repeated insertion of monomer units into the chain to create an incrementally longer chain... 

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