Supramolecular Structures and Photoelectronic Properties of π-Complexes Composed of Self-Assembling Cyclic Porphyrin Dimers and Fullerenes

Fumito Tani, Hirofumi Nobukuni, Ken Ichi Sakaguchi, Takuya Kamimura

研究成果: 著書/レポートタイプへの貢献

抄録

We have prepared nickel complexes and freebases of cyclic porphyrin dimers linked by butadiyne or phenothiazine groups. The porphyrin dimers have self-assembling pyridyl groups at the opposite meso positions and include fullerenes such as C60, PCBM, C70, and Li+@C60 to give π-complexes. In particular, the phenothiazine-bridged cyclic porphyrin dimers exhibit notable high affinities toward C60 (K assoc >  106M−1) and C70 (K assoc >  107M−1). In the crystal structures, the π-complexes of C60 and PCBM within the butadiyne-bridged nickel dimer and the phenothiazine-bridged freebase dimer afford self-assembled porphyrin nanotubes containing the linear arrays of the fullerenes. These self-assemblies are formed by the C-H · · · N hydrogen bonds and π-π interactions of the meso pyridyl groups. On the other hand, the π-complexes of C60 and C70 within the butadiyne-bridged freebase dimer gave the zigzag chains of the fullerenes through van der Waals contacts with each fullerene. These well-ordered C60 arrays yield high electron mobilities (Σμ >  10−1 cm2V−1s−1). The π-complexes of C60 and Li+@C60 within the butadiyne-bridged dimers perform photoinduced electron transfer from the porphyrins to the fullerenes to give the CS states. The π-complexes of Li+@C60 with the butadiyne-bridged dimers afford the CS states of remarkably long lifetimes reaching submillisecond order.

元の言語英語
ホスト出版物のタイトルChemical Science of Electron Systems
出版者Springer Japan
ページ423-442
ページ数20
ISBN(電子版)9784431553571
ISBN(印刷物)9784431553564
DOI
出版物ステータス出版済み - 1 1 2015

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Fullerenes
Porphyrins
Dimers
Nickel
Electrons
Nanotubes
Hydrogen
Electron mobility
Self assembly
Hydrogen bonds
Crystal structure
phenothiazine

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Engineering(all)
  • Biochemistry, Genetics and Molecular Biology(all)

これを引用

Tani, F., Nobukuni, H., Sakaguchi, K. I., & Kamimura, T. (2015). Supramolecular Structures and Photoelectronic Properties of π-Complexes Composed of Self-Assembling Cyclic Porphyrin Dimers and Fullerenes. : Chemical Science of Electron Systems (pp. 423-442). Springer Japan. https://doi.org/10.1007/978-4-431-55357-1_25

Supramolecular Structures and Photoelectronic Properties of π-Complexes Composed of Self-Assembling Cyclic Porphyrin Dimers and Fullerenes. / Tani, Fumito; Nobukuni, Hirofumi; Sakaguchi, Ken Ichi; Kamimura, Takuya.

Chemical Science of Electron Systems. Springer Japan, 2015. p. 423-442.

研究成果: 著書/レポートタイプへの貢献

Tani, Fumito ; Nobukuni, Hirofumi ; Sakaguchi, Ken Ichi ; Kamimura, Takuya. / Supramolecular Structures and Photoelectronic Properties of π-Complexes Composed of Self-Assembling Cyclic Porphyrin Dimers and Fullerenes. Chemical Science of Electron Systems. Springer Japan, 2015. pp. 423-442
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AB - We have prepared nickel complexes and freebases of cyclic porphyrin dimers linked by butadiyne or phenothiazine groups. The porphyrin dimers have self-assembling pyridyl groups at the opposite meso positions and include fullerenes such as C60, PCBM, C70, and Li+@C60 to give π-complexes. In particular, the phenothiazine-bridged cyclic porphyrin dimers exhibit notable high affinities toward C60 (K assoc >  106M−1) and C70 (K assoc >  107M−1). In the crystal structures, the π-complexes of C60 and PCBM within the butadiyne-bridged nickel dimer and the phenothiazine-bridged freebase dimer afford self-assembled porphyrin nanotubes containing the linear arrays of the fullerenes. These self-assemblies are formed by the C-H · · · N hydrogen bonds and π-π interactions of the meso pyridyl groups. On the other hand, the π-complexes of C60 and C70 within the butadiyne-bridged freebase dimer gave the zigzag chains of the fullerenes through van der Waals contacts with each fullerene. These well-ordered C60 arrays yield high electron mobilities (Σμ >  10−1 cm2V−1s−1). The π-complexes of C60 and Li+@C60 within the butadiyne-bridged dimers perform photoinduced electron transfer from the porphyrins to the fullerenes to give the CS states. The π-complexes of Li+@C60 with the butadiyne-bridged dimers afford the CS states of remarkably long lifetimes reaching submillisecond order.

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