Vapor pressure of Buckminsterfullerene
- 16 March 1992
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (11) , 1313-1314
- https://doi.org/10.1063/1.107327
Abstract
The vapor pressures of the fullerenes C60 and C70 have been measured over the temperature range 400–600 °C by the Knudsen‐effusion thermogravimetric technique. For C60, a heat of sublimation of 38±1 kcal/mol is obtained, and the value for C70 is 45±1 kcal/mol. The vapor pressure of C60 ranges from 1.8×10−5 and 1.4×10−2 Torr and that of C70 is between 1.4×10−5 and 8.7×10−3 Torr over the temperature range investigated. At 500 °C, the vapor pressure of C60 is about 1035 that of graphite. The entropy of vaporization of C60 obeys Trouton’s rule.Keywords
This publication has 3 references indexed in Scilit:
- Heats of sublimation from a polycrystalline mixture of carbon clusters (C60 and C70)The Journal of Physical Chemistry, 1991
- Characterization of the soluble all-carbon molecules C60 and C70The Journal of Physical Chemistry, 1990
- Solid C60: a new form of carbonNature, 1990