| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2016-03-25 |
| タイトル |
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タイトル |
Thermally Equilibrated Two Conformers of 10,11-Dihydro-5H-dibenzo[a,d]cycloheptene Spiro-linked Homobenzoquinone Epoxide |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
ASAHARA, HARUYASU
KOIZUMI, TAKUYA
MOCHIZUKI, EIKO
OSHIMA, TAKUMI
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The crystal structures of the thermally equilibrated two conformational isomers of the title epoxide, spiro[10,11-dihydro-5H-dibenzo[a,d]cycloheptene-5,8’-1’,5’-dimethyl-4’-oxa-tricyclo[5.1.0.0<^3’,5’>]octane-2’,6’-dione] (C_23H_<20>O_3), have been determined by X-ray diffraction. The tricyclicdione skeleton takes the anti-structure of oxirane and cyclopropane rings with respect to the conjunct quinone frame. The major isomer (IIb) has a fairly twisted boat form of the spiro-linked 10,11-dihydro-5H-dibenzo[a,d]cycloheptene ring folding opposite to the adjoining cyclopropane CH_3-substituent, whereas the minor isomer (IIa) has almost ideal twist-boat form of the seven-membered ring inversely folding to the side of relevant CH_3 group. The conformational structures of these isomers have been compared with those of the corresponding isomers of unepoxidized homobenzoquinone. |
| 書誌情報 |
Acta Crystallographica Section C
巻 C62,
号 Part. 3,
p. o136-o138,
発行日 2006
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| DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
10.1107/S0108270106002800 |
| 権利 |
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権利情報 |
International Union of Crystallographers, H. Asahara, T. Koizumi, E. Mochizuki and T. Oshima, Acta Crystallographica Section C, C62(Part. 3), 2006, p.o136-138 |
| 著者版フラグ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 出版者 |
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出版者 |
International Union of Crystallographers |
27-38.pdf (247.8 kB)
