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9 results on '"Naoki Aratani"'

1. Tetrabenzoperipentacene: Stable Five-Electron Donating Ability and a Discrete Triple-Layered b-Graphite Form in the Solid State.

Author

Akinobu Matsumoto, Mitsuharu Suzuki, Daiki Kuzuhara, Hironobu Hayashi, Naoki Aratani, and Hiroko Yamada

Subjects
SOLID state chemistry, STOKES shift, OXIDATION, CYCLIC voltammetry, RING formation (Chemistry)
Abstract

An oxidative ring-closure reaction of a tetranaphthylpyrene derivative led to the synthesis of a 56 all-carbon conjugated tetrabenzoperipentacene. In the single-crystal Xray structure, three molecules make a triple-layered cluster by p-stacking, wherein each layer rotates by 120°, and is thus considered a petit b-graphite. As for the optical properties, the Stokes shift is extremely small (10 cm-1), thus indicating its remarkably rigid framework. The tetrabenzoperipentacene exhibits reversible five-electron oxidation waves in cyclic voltammetry, and is regarded as a counterpart to the fullerene C60 in terms of stable multicharge-storage nanocarbon materials. [ABSTRACT FROM AUTHOR]

Published
2015
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8. The Importance of a β–β Bond for Long-Range Antiferromagnetic Coupling in Directly Linked Copper(II) and Silver(II) DiporphyrinsThis work was partly supported by Grants-in-Aid from the Ministry of Education, Culture, Sports, Science, and Technology, Japan (no. 15350022 and 21st Century COE on Kyoto University Alliance for Chemistry) and by the International Innovation Center of Kyoto University.

Author

Takahisa Ikeue, Ko Furukawa, Hiroshi Hata, Naoki Aratani, Hiroshi Shinokubo, Tatsuhisa Kato, and Atsuhiro Osuka

Published
2005
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