| 초록 |
Porphyrin is a natural pigment with unique properties, and has shown characteristic interactions depending on inter-porphyrin spatial arrangements. Natural systems efficiently control the inter-porphyrins orientations employing α-helical peptides as scaffolds, and recent studies mimicked the systems using DNAs, peptides, and synthetic polymers. Here, two porphyrins were conjugated to an α-helical peptoid, oligo-N-substituted glycine constructed with chiral submonomer, by Suzuki cross-coupling reactions. Four different PPCC-C were synthesized by controlling the sequence of the peptoids. Conformational homogeneity and photophysical properties of PPCC-C were analyzed by circular dichroism, UV-vis, and fluorescence spectra. The results were also compared to previously reported PPCamide, indicating stronger helical folds, less aggregate formations of PPC. Controllable arrangement of porphyrins can be utilized to artificial light-harvesting complexes with novel photophysical properties. |
