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UV-vis absorption spectra graphed versus the extinction coefficient of the chromophores. A. meso-Tetraphenylporphyrin (TPP), meso-tetra(p-aminophenyl)porphyrin 1, and sugar-modified porphyrin 3. B. Sugar-modified porphyrin 3, Sugar-modified chlorin 4I, and sugar-modified bacteriochlorin 6I.
