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Macrocyclic 2,7‐Anthrylene Oligomers
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- Yuta Yamamoto
- Department of Chemistry, Faculty of Science Okayama University of Science 1-1 Ridaicho, Kita-ku Okayama 700-0005 Japan
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- Kan Wakamatsu
- Department of Chemistry, Faculty of Science Okayama University of Science 1-1 Ridaicho, Kita-ku Okayama 700-0005 Japan
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- Tetsuo Iwanaga
- Department of Chemistry, Faculty of Science Okayama University of Science 1-1 Ridaicho, Kita-ku Okayama 700-0005 Japan
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- Hiroyasu Sato
- X-ray Research Laboratory Rigaku Corporation 3-9-12 Matubaracho, Akishima Tokyo 196-8666 Japan
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- Shinji Toyota
- Department of Chemistry and Materials Science Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152–8551 Japan
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Description
<jats:title>Abstract</jats:title><jats:p>A macrocyclic compound consisting of six 2,7‐anthrylene units was successfully synthesized by Ni‐mediated coupling of the corresponding dibromo precursor as a novel π‐conjugated compound. This compound was sufficiently stable and soluble in organic solvents due to the presence of mesityl groups. X‐ray analysis showed that the molecule had a nonplanar and hexagonal wheel‐shaped framework of approximately <jats:italic>S</jats:italic><jats:sub>6</jats:sub> symmetry. The dynamic process between two <jats:italic>S</jats:italic><jats:sub>6</jats:sub> structures was observed by using the dynamic NMR technique, the barrier being 58 kJ mol<jats:sup>−1</jats:sup>. The spectroscopic properties of the hexamer were compared with those of analogous linear oligomers.</jats:p>
Journal
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- Chemistry – An Asian Journal
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Chemistry – An Asian Journal 11 (9), 1370-1375, 2016-03-24
Wiley
