The Crystal Structure of 2,4,6-Triphenylpyrylium-1,1,3,3-tetracyanopropenide, [(C<SUB>23</SUB>H<SUB>17</SUB>O)<SUP>+</SUP>·(C<SUB>7</SUB>HN<SUB>4</SUB>)<SUP>−</SUP>]

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概要

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• The crystal structure of an organic charge transfer salt 2,4,6-triphenylpyrylium-1,1,3,3-tetracyanopropenide has been determined by means of X-ray diffraction. The crystals are monoclinic in the space group P2<SUB>1</SUB>/a. The unit cell dimensions are: <I>a</I>=13.024, <I>b</I>=21.357, <I>c</I>=8.324Å, β=94.56°. The cation and the anion are nearly planar and form an "ion-pair." The crystal is built up from infinite columns stacked by these ion-pairs along the c axis. Between two adjacent anions in the neighboring columns, a weak hydrogen bond (C–H···N 3.265 (5), H···N 2.185(4) Å) is present. The charge transfer interaction between the anion and the cation seems to have less influence on the crystal structure than the electrostatic force or the hydrogen bonding.

• 公益社団法人 日本化学会の論文

著者

• Kasai Nobutami

  Department Of Applied Biological Science Tokyo University Of Science

• Yasuoka Noritake

  Department Of Life Science Faculty Of Science Himeji Institute Of Technology

• Yamane Takashi

  Institute For Human Science And Bioengineering Engineering National Institute Of Advanced Industrial

• Yamane Takashi

  Institute for Protein Research, Osaka University

• Tamamura Toshiaki

  Department of Applied Chemistry, Faculty of Engineering, Osaka University

• Yasuoka Noritake

  Department of Applied Chemistry, Faculty of Engineering, Osaka University

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