Characterization and structures of dimeric C70 oxides, C140O, synthesized with hydrothermal treatment

Toshiji Kudo, Yuki Akimoto, Kozo Shinoda, Balachandran Jeyadevan, Kazuyuki Tohji, Takashi Nirasawa, Markus Waelchli, Wolfgang Krätschmer

研究成果: Article査読

17 被引用数 (Scopus)

抄録

The dimeric C70 oxides were synthesized from C70/C70O mixed powder by hydrothermal treatment at 373 K for 12 h in aqueous NaOH solution. In this treatment, nucleophilic OH- ions are abundant and nucleophilic addition reactions were considered to synthesize dimeric fullerene oxides. The yield was estimated as ca. 2-3% summing up each isomer and also produced polyoxides, it is lower than that of C120O. Three isomers of C140O were isolated using High Performance Liquid Chromatography (HPLC) and characterized with UV-vis, FT-IR, and 13C NMR and other methods. The results of these methods show a close similarity between C140O and C120O and support that our C140O samples exhibit the structure of conventional furan-bridged dimers. On the basis of the results of 13C NMR and PM3 calculations, structure assignments for each sample were attempted.

本文言語English
ページ(範囲)4383-4389
ページ数7
ジャーナルJournal of Physical Chemistry B
106
17
DOI
出版ステータスPublished - 2002 5月 2

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • 材料化学

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