Aggregation in water solutions of tetrasodium diprotonated meso-tetrakis (4-sulfonatophenyl) porphyrin
JM Ribó, J Crusats, JA Farrera… - Journal of the Chemical …, 1994 - pubs.rsc.org
JM Ribó, J Crusats, JA Farrera, ML Valero
Journal of the Chemical Society, Chemical Communications, 1994•pubs.rsc.org… 9 From the evaporation of the colloidal solutions ribbon-like anisotropic structures can be
obtained. 7 We have studied the chemical behaviour of other water soluble sulphonated
tetraarylporphyrins but ortho-disubstituted (dichloro, dimethyl and difluoro ortho-substituted).
Nevertheless, in these compounds the ortho-disubstitution prevents an … Size increases of
these zwitterionic aggregates would allow the association between 'chains' forming the
second aggregated species (face-to-face), which show a blue-shifted allowed exciton …
obtained. 7 We have studied the chemical behaviour of other water soluble sulphonated
tetraarylporphyrins but ortho-disubstituted (dichloro, dimethyl and difluoro ortho-substituted).
Nevertheless, in these compounds the ortho-disubstitution prevents an … Size increases of
these zwitterionic aggregates would allow the association between 'chains' forming the
second aggregated species (face-to-face), which show a blue-shifted allowed exciton …
The title porphyrin shows non ideal cmc with formation of J-aggregates, due to the formation of intermolecularly stabilized zwitterions, which at high concentration also results in H-aggregates.
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