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Abstract <p>The 5-I-8-HqAc (<b>1</b>) and 5,7-I<sub>2</sub>-8-HqAc (<b>2</b>) acyl derivatives are prepared by the interaction of 5-iodo-8-hydroxyquinoline (5-I-8-Hq) and 5,7-diiodo-8-hydroxyquinoline (5,7-I<sub>2</sub>-8-HqAc) with acetic anhydride at 80&#xa0;°C. Crystals of these compounds are obtained by the recrystallization from chloroform. The crystal structures of <b>1</b> and <b>2</b> are determined by XRD, the revealed structural features are discussed. The intermolecular contacts influencing the crystal packing are analyzed; Hirshfeld surfaces are constructed. It is shown that the monoiodide contains short I⋯N halogen bonds, whereas the diiodide contains only short I⋯I contacts.</p>

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Structures of Acylated 5-Iodo-8-Hydroxyquinoline and 5,7-Diiodo-8-Hydroxyquinoline Derivatives

  • 期刊论文

  • 发表日期：

    2025年3月28日

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  • V. S. Senchurin,
  • S. A. Nayfert,
  • A. A. Osipov,
  • D. A. Zherebtsov,
  • R. Kantkhapazham

摘要

Abstract

The 5-I-8-HqAc (1) and 5,7-I2-8-HqAc (2) acyl derivatives are prepared by the interaction of 5-iodo-8-hydroxyquinoline (5-I-8-Hq) and 5,7-diiodo-8-hydroxyquinoline (5,7-I2-8-HqAc) with acetic anhydride at 80 °C. Crystals of these compounds are obtained by the recrystallization from chloroform. The crystal structures of 1 and 2 are determined by XRD, the revealed structural features are discussed. The intermolecular contacts influencing the crystal packing are analyzed; Hirshfeld surfaces are constructed. It is shown that the monoiodide contains short I⋯N halogen bonds, whereas the diiodide contains only short I⋯I contacts.