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Supramolecular Assemblies of Tripodal Porphyrin Hosts and C 60
Author(s) -
Tong Lok H.,
Wietor JeanLuc,
Clegg William,
Raithby Paul R.,
Pascu Sofia I.,
Sanders Jeremy K. M.
Publication year - 2008
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200701686
Subject(s) - porphyrin , trimer , fullerene , supramolecular chemistry , crystallography , intermolecular force , intramolecular force , crystallite , chemistry , materials science , photochemistry , dimer , stereochemistry , molecule , crystal structure , organic chemistry
Abstract The self‐assembly of two tripodal porphyrin hosts in the presence of C 60 , in the solid state, has been studied using synchrotron X‐ray crystallography, and in solution by using 1 H NMR and fluorescence spectroscopies. The binding affinities, stoichiometries and geometries strongly depend on the size of the porphyrin host. Intramolecular and/or intermolecular porphyrin–fullerene interactions are observed in the co‐crystallites and in each case, the trimer exhibits a “tweezers‐like” structural motif. The solid‐state structures of the trimer‐fullerene co‐crystallites reveal close fullerene–porphyrin and fullerene–fullerene contacts.