著者

宇野 英満 桝本 茜 黒木 健司 富永 和孝 小野 昇

出版者

基礎有機化学会(基礎有機化学連合討論会)

雑誌

基礎有機化学討論会要旨集(基礎有機化学連合討論会予稿集)

巻号頁・発行日

vol.16, pp.327, 2002

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Porphyrin oligomers have received great attention in various fields, because they are promising candidates for organic conductive materials, near IR dyes, molecular wires and so on. Many synthetic approaches to covalently linked porphyrins are reported for such purposes. We have succeeded in the new preparation of a bisporphyrin linked with a bicyclo[2.2.2]octadiene skelton. Our strategy provides an easy access not only to the gable porphyrin bearing spatially fixed porphyrin chromophores but also to a fused porphyrin dimer having a highly p-extended chromophore by simple pyrolysis. In this session, we will present the preparation and the property of gable diporphyrins, chromophores of which are connected with bis(ethano)anthracene and ethanonaphthalene moieties, and their conversion to acene-fused diporphyrins.

著者

小野 昇平

出版者

世界法学会

雑誌

世界法年報 (ISSN:09170421)

巻号頁・発行日

vol.35, pp.109-131, 2016-03-28 (Released:2020-06-11)

著者

小野 昇一 熊谷 幹郎 帆足 興次

出版者

Japan Society of Corrosion Engineering

雑誌

Zairyo-to-Kankyo (ISSN:09170480)

巻号頁・発行日

vol.40, no.5, pp.315-322, 1991-05-15 (Released:2009-11-25)

参考文献数

10

被引用文献数

1 1

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Influence of dissolved oxygen and temperature on corrosion and elution behaviors of Si3N4 ceramics containing 5wt% MgO as sintering aid in high-temperature pure water were studied using the once-through type experimental loop. Exposure tests were carried out under two different dissolved oxygen concentrations of below 20μg/l and 8mg/l. Exposure temperature was elevated gradually from 120°C to 200°C and then to 275°C, where the indicated temperature was kept for 8 days. The results suggested that dissolved oxygen did not promote corrosion of Si3N4 ceramics, although the weight loss of specimen after exposure was influenced largely by temperature and the amount was increased by almost one order of magnunitude with temperature change. These were considered to be caused by the reaction of Si3N4 grain with H2O, of which rate was increased with temperature. The specimen exposed at 275°C was largely leached and its amount of weight loss attained up to 52mg/cm2 under low dissolved oxygen condition. Then a part of corrosion products remained on the surface and formed the porous corrosion film. In these processes Mg tended to be accumulated in the leached layer. On the other hand, Si3N4 grain was scarecely eluted at 120°C, but the grain boundary contaming Mg was selectively eluted to test solution.

著者

小野 昇 加治 有恒

出版者

The Society of Synthetic Organic Chemistry, Japan

雑誌

有機合成化学協会誌 (ISSN:00379980)

巻号頁・発行日

vol.38, no.2, pp.115-127, 1980-02-01 (Released:2009-11-13)

参考文献数

110

被引用文献数

21 24

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Recent advances of the chemistry of aliphatic nitro compounds are reviewed, in which the following items are covered. 1) Preparation of aliphatic nitro compounds. 2) Reaction of aliphatic nitro compounds which includes substitution and elimination reaction of the nitro group, conversion of the nitro group to the carbonyl or amino group and organic synthesis using nitroolefins.

著者

小野 昇平

出版者

東北大学グローバルCOE「グローバル時代の男女共同参画と多文化共生」

雑誌

GEMC journal : グローバル時代の男女共同参画と多文化共生 : Gender equality and multicultural conviviality in the age of globalization

巻号頁・発行日

no.3, pp.16-33, 2010-03