meso-to-meso 2,5-Pyrrolylene bridged zig-zag porphyrin arrays have been synthesized via a stepwise Suzuki–Miyaura cross coupling reaction. Both the dimeric and trimeric structures of ZnII porphyrin were confirmed by X-ray diffraction analysis. DFT calculations indicate that the porphyrin oligomers are all in zig-zag conformations. The UV/Vis absorption and emission spectra of these porphyrin oligomers were red-shifted as the number of their porphyrin units increased.
Zhang, S., Kim, J. O., Le, Y., Wen, B., Zhou, M., Liu, S., Aratani, N., Xu, L., Kim, D., & Song, J. (2017). meso-to-meso 2,5-Pyrrolylene bridged zig-zag porphyrin arrays. Chemical Communications, 53(83), 11488-11491. https://doi.org/10.1039/C7CC06793C