2017年12月
High-Resolution Photoelectron Imaging of Cryogenically-Cooled C59N- and (C59N)(2)(2-) Azafullerene Anions
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
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- 巻
- 8
- 号
- 24
- 開始ページ
- 6220
- 終了ページ
- 6225
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/acs.jpclett.7b03091
- 出版者・発行元
- AMER CHEMICAL SOC
We report a photoelectron imaging study of cryogenically p os cooled C59N- and (C59N)(2)(2-) anions produced from electrospray ionization. High-resolution photoelectron spectra are obtained for C59N- for the first time, allowing seven vibrational frequencies of the C59N azafullerene to be measured. The electron affinity of C59N is determined accurately to be 3.0150 +/- 0.0007 eV. The observed vibrational features are understood on the basis of calculated frequencies and compared with those of C-60 and C59HN. The photoelectron image of (C59N)(2)(2-), which has the same mass/charge ratio as C59N-, is also observed, allowing the second electron affinity of the (C59N)(2) azafullerene dimer to be measured as 1.20 +/- 0.05 eV. The intramolecular Coulomb repulsion of the (C59N)(2)(2-) dianion is estimated to be 1.96 eV and is investigated theoretically using the electron density difference between (C59N)(2)(2-) and (C59N)(2).
- リンク情報
- ID情報
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- DOI : 10.1021/acs.jpclett.7b03091
- ISSN : 1948-7185
- Web of Science ID : WOS:000418786600041