ELECTRON-AFFINITIES OF HIGHER FULLERENES
ELECTRON-AFFINITIES OF HIGHER FULLERENES
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DOI：
10.1002/rcm.1290071109
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发表时间：
1993-11-01
影响因子：
2
通讯作者：
SKOKAN, EV
中科院分区：
文献类型：
--
作者：
BOLTALINA, OV;SIDOROV, LN;SKOKAN, EV
本文用努森池质谱法研究了富勒烯蒸气在800-900 K温度范围内的离子-分子平衡。测定了C_（60）与高级富勒烯C_（70）、C_（76）、C_（78）和C_（84）单电子交换反应的平衡常数。发现C70、C76、C78和C84的电子亲和力分别为2.72 +/- 0.05、2.88 +/- 0.05、3.01 +/- 0.07和3.05 +/-0.08eV。观察到C86、C90和C92的负离子，并且估计这些物质的电子亲合能的下限为大于或等于3.0 eV。
Knudsen cell mass spectrometry has been used for the investigation of ion-molecule equilibria between gaseous neutral species and negative ions in fullerene vapors at 800-900 K. Equilibrium constants of one-electron exchange reactions between C60 and the higher fullerenes C70, C76, C78 and C84 have been measured. Electron affinities Of C70, C76, C78 and C84 were found to be 2.72 +/- 0.05, 2.88 +/- 0.05, 3.01 +/- 0.07, and 3.05 +/- 0.08 eV, respectively. Negative ions of C86, C90, and C92 were observed, and the lower limit of electron affinities for these species was estimated as greater-than-or-equal-to 3.0 eV.