The crystal and molecular structure of naphthanthrone.

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概要

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• The crystals of naphthanthrone(C<SUB>19</SUB>H<SUB>10</SUB>O) are orthorhombic, with the P2<SUB>1</SUB>2<SUB>1</SUB>2<SUB>1</SUB> space group and these lattice constants: <I>a</I>=17.345(17), <I>b</I>=3.973(13), <I>c</I>=17.392(14) Å, and <I>Z</I>=4. The structure was solved by the Patterson method and refined by a block-diagonal least-squares program to give an <I>R</I>-value of 0.085 on the basis of the 897 observed reflections collected by Weissenberg photographs. The molecule is planar within the limits of experimental error and has an approximate symmetry of mm. The molecules are stacked face-to-face by van der Waals forces along the b-axis. The interplanar spacing is 3.50 Å.

• 公益社団法人 日本化学会の論文

著者

• Fujisawa Shoji

  Department Of Chemistry Faculty Of Science Toho University

• Oonishi Isao

  Department of Applied Chemistry, Faculty of Engineering, Yamanashi University

• Aoki Junji

  Department of Chemistry, Faculty of Science, Toho University

• Iwashima Satoshi

  Department of Chemistry, Faculty of Science and Technology, Meisei University

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