Zinc porphyrins self-aggregation

Another example of self-assembly of porphyrin-containing polymer was illustrated by Li et al.73 Polyacetylene functionalized with fullerene and zinc porphyrin pendant groups were synthesized by polymerizing the corresponding fullerene/porphyrin substituted alkyne monomers with rhodium(I) norbomadiene catalyst (Scheme 5.5).74 Polymers with different ratio of C60 and porphyrin were synthesized. The polymers showed photocurrent response when the thin films were irradiated with white light, which was due to the electron transfer from the photo-excited porphyrin to the C60 units. In addition, the copolymers aggregated into ellipse-shaped nanorod structures with a diameter of approximately 100 nm and a length of... 

Anderson and coworkers [81] have extended this approach of metal-ligand mediated self-assembly of dyes to construct double-stranded, conjugated ladders 30 through cofacial bridging of metalloporphyrins. The zinc porphyrin polymer 29, which is soluble in chloroform even in aggregated form, is transformed into the ladder complex by the addition of the ditopic hgand 4,4 -... 

Kureishi Y, Tamiald H (1998) Synthesis and self-aggregation of zinc 20-halochlorins as a model for bacteriochlorophylls c/d. J Porphyrins Phthalocyanines 2(2) 159—169... 

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