Porphinoids metal complexes

Inspired by the structures of corrinoid and porphinoid metal complexes, which in nature play a fundamental role as biocatalysts, we have developed a route to chiral C2-symmetric semicorrins 1, a class of bidentate nitrogen ligands specifically designed for enantioselective catalysis [7]. These ligands possess a number of structural features that make them attractive ligands for the stereocontrol of metal-catalyzed reactions. 

Chemical transformations at the macroeyclic chromophorc of expanded porphyrins are still not known. The complexation behavior of expanded porphyrins is very different from that of nonexpanded porphinoid macrocycles. The coordination hole of the expanded porphyrins is often too big for the complexation of a single metal ion, so in fact two metal ions can be chelated. With some expanded porphyrins, anion binding is observable, a striking difference to the nonexpanded porphyrins. The complexation behavior and the host-guest chemistry of expanded porphyrins is a rapidly growing field of research. The work in this field has been reviewed. Ie f... 

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