Supramolecular assemblies of tripodal porphyrin hosts and C60.
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.
Tong
Lok H
LH
Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
Wietor
Jean-Luc
JL
Clegg
William
W
Raithby
Paul R
PR
Pascu
Sofia I
SI
Sanders
Jeremy K M
JK
D018360:Crystallography, X-Ray; D037741:Fullerenes / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
D037741:Fullerenes; D046911:Macromolecular Substances; D009942:Organometallic Compounds; D011166:Porphyrins; D015032:Zinc; C069837:fullerene C60