Porphyrins oligomers

Sugiura K (2003) An Adventure in Macromolecular Chemistry Based on the Achievements of Dendrimer Science Molecular Design, Synthesis, and Some Basic Properties of Cyclic Porphyrin Oligomers to Create a Functional Nano-Sized Space. 228 65-85 Sun J-Q, Bartlett RJ (1999) Modern Correlation Theories for Extended, Periodic Systems. 203 121-145... 

Research Objectives of Cyclic Porphyrin Oligomers in the Context... 

Based on the working hypothesis described above, the author focuses on the chemistry of cyclic porphyrin oligomers (CPOs). As described in the next section, porphyrin is a multi-functional compound and the nano-sized closed space created by these molecules should therefore be of interest to chemists. 

Thousands of cyclic-shaped molecules are known. Why then must we focus on the cyclic porphyrin oligomers (CPOs) in the context of dendrimer chemistry Are there any specific properties and functions associated with CPOs ... 

To reveal the light-harvesting process, synthetic studies on cyclic porphyrin oligomers, designed based on the information of the protein structure, are considered. Nature adopted the cyclic alignment of chlorophyll. Is the closed cyclic... 

Fig. 2. Synthetic strategies, method A and method B, of cyciic porphyrin oligomers. Black and white circles indicate the reaction points and the resultant linkage moieties, respectively...

Figure 10.13 Closed, cyclic, self-assembling zinc porphyrin oligomers.

In contrast with the porphyrin dendrimers in Fig. 13.23, porphyrin oligomers with a polypeptidic backbone in Fig. 13.25 are flexible enough to accommodate... 

A zinc(n) meso-meso linked porphyrin oligomer 57 exists in a nonhelical conformation in solution, but may adopt a dynamic helical conformation upon complexation with an achiral urea 58 through complementary hydrogen bonding interactions [115]. In the presence of the chiral diamine (S)-59, the 57-58 complex forms a predominantly one-handed helical conformation, thus showing a characteristic ICD in the absorption region of the porphyrin chromophore. This system may be used to sense the chirality of chiral diamines. 

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