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Calixarene–Porphyrin Supramolecular Complexes: pH‐Tuning of the Complex Stoichiometry
Author(s) -
Di Costanzo Luigi,
Geremia Silvano,
Randaccio Lucio,
Purrello Roberto,
Lauceri Rosaria,
Sciotto Domenico,
Gulino Fabio Giuseppe,
Pavone Vincenzo
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20011119)40:22<4245::aid-anie4245>3.0.co;2-#
Subject(s) - calixarene , porphyrin , supramolecular chemistry , stoichiometry , chemistry , combinatorial chemistry , photochemistry , molecule , organic chemistry
Self‐aggregation of water‐soluble pyridinium‐substituted porphyrins with functionalized calixarenes leads to well‐defined pH‐tunable stoichiometries. Two assemblies with different porphyrin:calixarene ratios that crystallized at pH 2 and 6 (see structure) have been structurally characterized. The Job plots of Soret band broadenings indicate that these structures are also preserved in solution.