The Discovery of C - Rice Universityrfcurl/CurlDiscovery.pdfThe diffuse interstellar bands In the...
Transcript of The Discovery of C - Rice Universityrfcurl/CurlDiscovery.pdfThe diffuse interstellar bands In the...
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The Discovery of C60
ACS Philadelphia 2016
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Rick atop Ap2
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Cluster beam TOF mass spectrometer
Cluster Source
Ion Detector
UV Laser Ionization
Laser vaporization
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Cluster beam source
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Harry Kroto
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Carbon Chain Molecules Found in Interstellar Clouds
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Emulating the Stars in the Lab
HeNH3
C
C2C3NC+H
He
He HCCCCCN
Space
Redgiant
Laboratory
Laser
graphite
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NASA
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Origin of the Diffuse Interstellar lines Here I suggest that the lines are caused by!the absorption of polyatomic molecules and!that the line width is the result of radiationless!internal conversion between stable states.!Furthermore, I propose that the absorbing !species are long chain carbon molecules, Cn,!where n may lie in the range 5-15.!
A. E. Douglas, Nature 269, 130 (1977)!
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Variations in C60 peak intensity
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Buckminster Fuller’s Dome at Expo 67
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Smalley’s C60 Paper Model
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Kroto’s
Stardome
Map of the sky on a truncated
icosahedron consisting of pentagons as well as hexagons
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Buckminsterfullerene
C60
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Osawa 1971
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Adjacent Pentagon Fullerenes
C36 C60
One of 1812 fullerene isomers with 60 carbon atoms
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After bucky C60, this C70 structure is the first without adjacent pentagons
C70
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Arc Apparatus for Making Fullerenes
Krätschmer et al.
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The diffuse interstellar bands
In the original letter to Nature, we suggested that buckminsterfullerene might be a carrier of the dib’s.
After enormous creative effort, John Maier’s group found two clear matches* of C60+.
E.K. Campbell, M. Holz, D. Gerlich and J.P. Maier Nature. 523: 322 (2015)
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Konarka flexible portable panel
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