Synthesis and X-ray structure of dumb-bell-shaped C120
Article Abstract:
It is possible to use a solid-state mechanochemical reaction of C60 with potassium cyanide to synthesize C120, a dumb-bell-shaped molecule which is the simplest dimer of C60, connected only by a cyclobutane ring. In the single crystals of the [2+2] dimer obtained in recent research work, the C120 molecules are present in extremely ordered layers, not similar to the face-centred cubic arrangement of C60. It is likely that a C60 polymer will be produced if this crystalline material is irradiated.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Anomalous solubility behavior of C60
Article Abstract:
The temperature-dependent solubility of C60 in hexane, toluene and CS2 was investigated. It was observed that, for the three solvents, maximum solubility is exhibited near room temperature and the temperature dependence of the relative solubilities is much the same in each case. These results indicate that dissolution is endothermic below room temperature and exothermic above. Moreover, this conclusion is interpreted as a phase change in solid C60.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
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Curling and closure of graphitic networks under electron-beam irradiation
Article Abstract:
Irradiation by an intense electron beam causes carbon soot to form concentric shells because dangling bonds at the edges of a carbon sheet induce the sheet to curl in on itself. Under conditions of strong irradiation or high temperature, carbon seems to be more stable in spherical networks than in planar ones. Multishelled graphitic spheres of macroscopic dimensions could possibly be produced.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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