Calixarene-Porphyrin Supramolecular Complexes: pH-Tuning of the Complex Stoichiometry

Calixarene-Porphyrin Supramolecular Complexes: pH-Tuning of the Complex Stoichiometry

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 Jo...

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Veröffentlicht in:Angewandte Chemie International Edition 2001-11, Vol.40 (22), p.4245-4247
Hauptverfasser: Di Costanzo, Luigi, Geremia, Silvano, Randaccio, Lucio, Purrello, Roberto, Lauceri, Rosaria, Sciotto, Domenico, Gulino, Fabio Giuseppe, Pavone, Vincenzo
Format: Artikel
Sprache:eng
Schlagworte:
calixarenes
host-guest systems
porphyrinoids
self-assembly
supramolecular chemistry
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Zusammenfassung: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.
ISSN:1433-7851
1521-3773
DOI:10.1002/1521-3773(20011119)40:22<4245::AID-ANIE4245>3.0.CO;2-#