Structural studies of the interaction between indole derivatives and biologically important aromatic compounds. I. The crystal and molecular structure of the indole-3-acetic acid-nicotinamide (1:1) complex.

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概要

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• The title complex crystallizes in the monoclinic space group P2<SUB>1</SUB>/c. The unit-cell dimensions are <I>a</I>=11.287(5), <I>b</I>=5.110(3), <I>c</I>=26.391(3) Å, and β=107.07(2)°. The crystal structure was solved by a direct method. By block-diagonal least-squares refinements, the <I>R</I>-value dropped to 0.069. All the nitrogen and oxygen atoms in the complex participate in the hydrogen bonding. No prominent overlapping between pyridine and indole rings is observed in the crystal. Both molecules are hydrogen-bonded to form infinite-layered structures perpendicular to the c-axis; those structures are held together by van der Waals contacts.

• 公益社団法人 日本化学会の論文

著者

• INOUE Masatoshi

  Osaka Gastric Cancer Chemotherapy Group, Second Department of Surgery, Osaka University Medical Scho

• Fujiwara Takaji

  Faculty Of Pharmaceutical Sciences Of Osaka University

• TOMITA Ken-ichi

  Faculty of Pharmaceutical Sciences of Osaka University

• Sakaki Toshimasa

  Osaka College of Pharmacy

• Inoue Masatoshi

  Osaka College of Pharmacy

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