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Issue 40, 2010
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Sublimation of the endohedral fullerene Er3N@C80

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Abstract

The heat of sublimation of the endohedral metallofullerene Er3N@C80 was measured via Knudsen effusion mass spectrometry. The large molecule consists of a C80 fullerene cage which is stabilized by a complex of three erbium atoms bounded to a nitrogen atom and has a mass of 1475 amu. The mass spectrum at a temperature of 1045 K and the relative intensities of the thermal fractions of Er3N@C80 are provided. We also discuss possible thermal decomposition processes for these particles. By measuring the quantity of evaporated molecules in thermal equilibrium using a quadrupole mass spectrometer in a temperature range between 782 K and 1128 K, a value for the sublimation enthalpy of ΔHsub = 237 ± 7 kJ mol−1 is obtained via the second-law method.

Graphical abstract: Sublimation of the endohedral fullerene Er3N@C80

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Article information


Submitted
23 Apr 2010
Accepted
11 Aug 2010
First published
06 Sep 2010

Phys. Chem. Chem. Phys., 2010,12, 13076-13081
Article type
Paper

Sublimation of the endohedral fullerene Er3N@C80

A. Stibor, H. Schefzyk and J. Fortágh, Phys. Chem. Chem. Phys., 2010, 12, 13076
DOI: 10.1039/C0CP00325E

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