Extending supramolecular fullerene-porphyrin chemistry to pillared metal-organic frameworks
AUTOR(ES)
Sun, Dayong
FONTE
National Academy of Sciences
RESUMO
Porphyrins and fullerenes are spontaneously attracted to each other. This supramolecular recognition element can be exploited to produce ordered arrays of interleaved porphyrins and fullerenes. C60⋅H2TpyP⋅Pb(NO3)2⋅1.5TCE (H2TpyP = tetra-4-pyridylporphyrin; TCE = 1,1,2,2-tetrachloroethane) crystallizes in the tetragonal P4/n space group and the structure has been solved to high resolution. The Pb2+ ions connect the pyridylporphyrins in infinite sheets with an interlayer spacing of 12.1 Å. The fullerenes are intercalated between these layers, acting as pillars. The 6:6 ring juncture bonds of C60 are centered over the porphyrins, bringing the layers into strict tetragonal register. This arranagement identifies the fullerene–porphyrin interaction as a structure-defining element. The same motif is seen in a related ribbon structure having C70 intercalated into HgI2-linked H2TpyTP. The supramolecular design principles involved in assembling these chromophores may have applications in materials science.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=122726Documentos Relacionados
- A fullerene molecular tip can detect localized and rectified electron tunneling within a single fullerene–porphyrin pair
- Conformational analysis of protonated cyclo-[(S)-phenylalanyl-(S)-histidyl] and its complex with benzaldehyde within metal-organic frameworks (MOFs)
- Inorganic and Metal-Organic Growth Requirements of the Genus Bacteroides1
- Evaluation of a Metal-Organic Composite (Tungsten-Lignin) for Attenuation of Gamma Radiation
- Hybrid metal-organic nanocomposites based on vandium pentoxide