The crystal and molecular structure of inner triple-layered paracyclophanequinone.
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概要
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The molecular structure of inner quinone isomer of two triple-layered paracyclophanequinones has been determined by means of X-ray diffraction. C<SUB>26</SUB>H<SUB>24</SUB>O<SUB>2</SUB>, <I>M</I> 368.5, orthorhombic, space group <I>Pbcn</I>, <I>a</I>=12.923(1), <I>b</I>=11.507(1), <I>c</I>=12.550(1) Å, <I>V</I>=1866.2(3) Å<SUP>3</SUP>, <I>Z</I>=4. The structure was solved by the direct method. Anisotropic refinement by the block-diagonal least-squares procedure gave <I>R</I>=0.042 for non-zero reflections. The molecule has a two-fold symmetry. The benzoquinone moiety is sandwiched by two donor benzene rings, and the two-fold axis passes through the O=C···C=O bonds of the twisted benzoquinone moiety. The outer benzene rings take a boat-form and the central benzoquinone ring is twisted.
- 公益社団法人 日本化学会の論文
著者
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Sakata Yoshiteru
The Institute Of Science And Industrial Research Osaka University
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Misumi Soichi
The Institute Of Scientific And Industrial Research Osaka University
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Kasai Nobutami
Department Of Applied Biological Science Tokyo University Of Science
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Toyoda Toshihiro
The Institute of Scientific and Industrial Research, Osaka University
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Tatemitsu Hitoshi
The Institute of Scientific and Industrial Research, Osaka University
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