Figure 1.

Cartoons showing coupling of a porphyrin dimer (P2) in the presence of templates T6, T4 and T5, together with analytical GPC traces (toluene/1 % pyridine, detection at 500 nm) of the crude reaction mixtures from these three reactions. The detailed chemical structures are shown in Figure 2; the product distributions shown here were obtained using the compounds with R=OC₈H₁₇. The percentages are isolated yields, for the main product of each reaction, and analytical yields for byproducts.