A Separate Race - Organometallic Species

Coordination of I1,0 and H20=CH2 to metal centres. Whereas the former can be interpreted using a traditional a covalent bonding model, this is far less successful for the latter. 

Formation and coordination of H5C5 as a cr-bonded ligand and as a TT-bonded ligand. In the latter mode, the ligand occupies the face of an octahedron in the same way that a conventional cyclic triamine does. 

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