Vapor pressure of C{sub 60} buckminsterfullerene

Journal Article · Thu Sep 21 04:00:00 EDT 1995 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/j100038a041· OSTI ID:111215

Piacente, V; Gigli, G; Scardala, P; Giustini, A ^[1]

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1. Universita di Roma `La Sapienza` (Italy)

The equilibrium pressures over C{sub 60} were measured over a large temperature range, 730-990 K, by the torsion effusion and Knudsen effusion methods. The data obtained are well represented by the following selected linear equation: log(p/kPa) = (8.28 {+-} 0.20) - (9154 {+-} 150)/T. Considering the vapor phase constituted by only C{sub 60(g)}, the sublimation standard enthalpy of this compound, {Delta}{sub sub}H{sup 0}(298) = 181 {+-} 2 kJ mol{sup -1}, as derived by second- and third-law elaboration of the experimental data, is proposed. Considerations on free energy functions of the solid C{sub 60} are also reported. 26 refs., 3 figs., 8 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 111215
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 38 Vol. 99; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
66 PHYSICS
ENTHALPY
FREE ENERGY
FULLERENES
KNUDSEN FLOW
NUMERICAL DATA
SCANNING ELECTRON MICROSCOPY
SUBLIMATION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0400-1000 K
TORSION
VAPOR PRESSURE