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Stacked double‐macrocyclic ligands III. Spectral properties of cofacial diporphyrins as a function of the inter‐chromophore separation
Author(s) -
Chang C. K.
Publication year - 1977
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570140733
Subject(s) - chemistry , chromophore , exciton , photochemistry , crystallography , absorption spectroscopy , absorption (acoustics) , coupling (piping) , spectral line , stereochemistry , optics , mechanical engineering , physics , quantum mechanics , astronomy , engineering
Three homologous cofacial diporphyrins that have interplanar distances ranging from 6.4Å to 4.2Å have been synthesized. Their absorption and emission spectra revealed strong exciton coupling in the diporphyrin. Magnesium complexes of diporphyrins were studied and their application as a model for P700 photoactive center was discussed.