Intercalation metalloporphyrins

Another approach was to intercalate metalloporphyrins into layered minerals such as clays 19. For instance, the tetracationic Mn(TMPyP = meso-tetra-N-methyl-pyridiniumyl porphyrin) catalyst was intercalated into the interlayer space of montmorillonite by simple ion exchange with already present cations 23. The corresponding supported catalyst was found to be much more efficient for hydroxylation of heptane by PhIO than the same Mn-porphyrin either simply... 

Some metal complexes that bind DNA noncovalently primarily through intercalation (top) or binding in the minor groove (bottom). Some metalloporphyrins also primarily associate via intercalation. 

Another method for the intercalation of metalloporphy-rins into clays has been explored using porphyrins and metalloporphyrins as organic templates in the hydrothermal synthesis of layered silicates. X-ray powder-diffraction data indicate that the porphyrins are intercalated parallel to the silicate layers. Microanalysis and UV-visible diffuse-reflectance spectra indicate that the porphyrins are incorporated intact. 

Nitrogenated macrocycles based on the cationic form of hemin can also be intercalated in layer silicates. Thus, different porphyrin derivatives, such as phenyl- and pyridyl-porphyrins, metalloporphyrins, chlorophylin, and related ma-... 

Porphyrins and phthalocyanines are well known not only for biological but also for catalytic, conductive, and photoactive properties. There has been an increased interest in the organization of porphyrins and metalloporphyrins into well-defined molecular architecture because of the possibility of controlling their desirable properties. Along this line, the intercalation of porphyrins (148,150-160) and phthalocyanines (161-171) into layered solids has been reported. Since porphyrins undergo reversible protonation-deprotonation reactions. 

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