Observation of difluorinated higher fullerene anions by Knudsen cell mass spectrometry and determination of electron affinities of C60F2 and C70F2期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Observation of difluorinated higher fullerene anions by Knudsen cell mass spectrometry and determination of electron affinities of C₆₀F₂ and C₇₀F₂

Authors:	Olga V Boltalina Lev N Sidorov Ekaterina V Sukhanova and Igor D Sorokin

Institution:	Department of Chemistry, Moscow State University, Moscow 119899, Russian Federation

Abstract:	Difluorinated higher fullerenes have been studied by Knudsen cell mass spectrometry. Thermal negative ions C_nF₂^? (n=60, 70, 72, 74, 76 and 78) were produced inside the effusion cell as well as the neutral molecules C₆₀F₂ and C₇₀F₂. From the equilibrium constants for the electron exchange reactions between difluorinated fullerenes and their parents electron affinity values were derived for C₆₀F₂ (2.74 eV) and C₇₀F₂ (2.80 eV).

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