Photoresponsive Crown Ethers. Part 11. Azobenzene‐Pillared Cylindrical Macrocycle As a Photoresponsive Receptor

Seiji Shinkai, Yoshihiro Honda, Kaori Ueda, Osamu Manabe

研究成果: ジャーナルへの寄稿学術誌査読

8 被引用数 (Scopus)

抄録

A cylindrical ionophore (1) in which two diaza‐crown ethers are linked by two azobenzene pillars serves as a photoresponsive host molecule. In alkaline solution containing K+, (1) forms a cascade complex with dianionic guest molecules, but photoirradiated (1) which has a shortened cylinder cannot bind the guest molecules so effectively as (1). (1) solubilised in acidic aqueous solution by protonation of four tertiary nitrogens provides a hydrophobic cavity to bind several anionic azo dyes. The association is also suppressed by photoirradiation. The results indicate that parallel array of the azobenzene segments in (1) provides a host cavity and the photoinduced structural change is readily reflected by the association tendency. This is the first example for the photoresponsive inclusion complex.

本文言語英語
ページ(範囲)302-306
ページ数5
ジャーナルIsrael Journal of Chemistry
24
4
DOI
出版ステータス出版済み - 1月 1 1984
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)

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