Vaporization studies on buckminsterfullerene

Journal Article · Thu Apr 30 04:00:00 EDT 1992 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/j100188a002· OSTI ID:232250

Mathews, C K; Baba, M S; Lakshmi Narasimhan, T S ^[1]

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1. Indira Gandhi Centre for Atomic Research, Tamil Nadu (India); and others

A Knudsen cell mass spectrometric study of pure C{sub 60} was carried out in the temperature range 600-800 K to obtain the vapor pressure and enthalpy of sublimation. The measured appearance potential for C{sub 60}{sup +} (8.1 {plus_minus}0.5 V) is in good agreement with the recommended value (7.6 {plus_minus} 0.2 V) for the ionization potential of C{sub 60}. The enthalpy of sublimation was found to be 181.4 {plus_minus} 2.3 kJ/mol at 700 K by the second law method. The vapor pressure of C{sub 60} is given as a function of temperature by the equation log (p/Pa)=-9777 {plus_minus} 138/T (K) + 11.582 {plus_minus} 0.126. 13 refs., 2 figs., 3 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 232250
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 9 Vol. 96; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
EVAPORATION
FULLERENES
MASS SPECTROSCOPY
SUBLIMATION HEAT
VAPOR PRESSURE