Names | |
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Preferred IUPAC name
(C70-D5h(6))[5,6]Fullerene[1] | |
Other names
Fullerene-C70, rugbyballene
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.162.223 |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C70 | |
Molar mass | 840.770 g·mol−1 |
Appearance | Dark needle-like crystals |
Density | 1.7 g/cm3 |
Melting point | sublimates at ~850 °C[3] |
insoluble in water | |
Band gap | 1.77 eV[2] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Part of a series of articles on |
Nanomaterials |
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Carbon nanotubes |
Fullerenes |
Other nanoparticles |
Nanostructured materials |
C70 fullerene is the fullerene molecule consisting of 70 carbon atoms. It is a cage-like fused-ring structure which resembles a rugby ball, made of 25 hexagons and 12 pentagons, with a carbon atom at the vertices of each polygon and a bond along each polygon edge. A related fullerene molecule, named buckminsterfullerene (or C60 fullerene) consists of 60 carbon atoms.
It was first intentionally prepared in 1985 by Harold Kroto, James R. Heath, Sean O'Brien, Robert Curl and Richard Smalley at Rice University. Kroto, Curl and Smalley were awarded the 1996 Nobel Prize in Chemistry for their roles in the discovery of cage-like fullerenes. The name is a homage to Buckminster Fuller, whose geodesic domes these molecules resemble.[4]
r3
was invoked but never defined (see the help page).