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arXiv 0912.3704physics.atm-clus
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富勒烯Er3N @ C80的升华

Sublimation of the Endohedral Fullerene Er3N@C80

Alexander Stibor, Hannah Schefzyk, József Fortágh

摘要:

通过Knudsen泻流质谱法测量了内嵌金属富勒烯Er3N@C80的升华热。该大分子由C80富勒烯笼组成,该笼通过包含与氮原子结合的三个铒原子的复合物而稳定,质量为1475 amu。在1045 K的温度下的质谱和Er3N@C80的热馏分的相对强度提供。我们还讨论了这些颗粒可能的热分解过程。通过四极质谱仪在782 ~ 1128 K温度范围内测量处于热平衡的蒸发分子量,由第二定律方法得到升华焓Hsub = 237 ± 7 kJ/mol。

英文摘要:

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 comprising 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 through a quadrupole mass spectrometer in a temperature range between 782 K and 1128 K, a value for the sublimation enthalpy of Hsub = 237 +-7 kJ/mol is obtained from the second law method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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