Synthesis of a Tetrabenzotetraaza[8]circulene by a "fold-In" Oxidative Fusion Reaction

Fengkun Chen, Yong Seok Hong, Soji Shimizu, Dongho Kim, Takayuki Tanaka, Atsuhiro Osuka

研究成果: ジャーナルへの寄稿記事

35 引用 (Scopus)

抄録

Tetrabenzotetraaza[8]circulene (1) has been synthesized in good yield by a "fold-in" oxidative fusion reaction of a 1,2-phenylene-bridged cyclic tetrapyrrole. X-ray diffraction analysis of 1 has revealed a planar square structure with a central cyclooctatetraene (COT) core that shows little alternation of the bond lengths. Despite these structural features, 1 shows aromatic-like character, such as sharp absorption bands, high fluorescence quantum yields (ΦF=0.55 in THF), and a single exponential fluorescence decay with τF=3.8 ns. These observations indicate a dominant contribution of an [8]radialene-like π conjugation and hence aromatic character of the local aromatic segments in 1.

元の言語英語
ページ(範囲)10639-10642
ページ数4
ジャーナルAngewandte Chemie - International Edition
54
発行部数36
DOI
出版物ステータス出版済み - 9 1 2015

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Fusion reactions
Fluorescence
Tetrapyrroles
Bond length
Quantum yield
X ray diffraction analysis
Absorption spectra

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

これを引用

Synthesis of a Tetrabenzotetraaza[8]circulene by a "fold-In" Oxidative Fusion Reaction. / Chen, Fengkun; Hong, Yong Seok; Shimizu, Soji; Kim, Dongho; Tanaka, Takayuki; Osuka, Atsuhiro.

:: Angewandte Chemie - International Edition, 巻 54, 番号 36, 01.09.2015, p. 10639-10642.

研究成果: ジャーナルへの寄稿記事

Chen, Fengkun ; Hong, Yong Seok ; Shimizu, Soji ; Kim, Dongho ; Tanaka, Takayuki ; Osuka, Atsuhiro. / Synthesis of a Tetrabenzotetraaza[8]circulene by a "fold-In" Oxidative Fusion Reaction. :: Angewandte Chemie - International Edition. 2015 ; 巻 54, 番号 36. pp. 10639-10642.
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