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Abstract <p>The crystal structure of allobetulin contained in birch bark as a minor component is determined. Allobetulin crystallizes in the monoclinic system in the space group <i>P</i>2<sub>1</sub>, <i>Z</i>&#xa0;=&#xa0;4. The unit cell parameters are determined as follows: <i>a</i>&#xa0;=&#xa0;13.2600(9)&#xa0;Å, <i>b</i>&#xa0;=&#xa0;12.6245(10)&#xa0;Å, <i>c</i>&#xa0;=&#xa0;15.4702(11)&#xa0;Å; β&#xa0;=&#xa0;95.425(7)°, <i>V</i>&#xa0;=&#xa0;2578.1(3)&#xa0;Å<sup>3</sup>. Allobetulin molecules form a layered crystal packing of supramolecular chains.</p>

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Crystal Structure of 3β-Hydroxy-19β,28-Expoxy-18α-Olean (allobetulin)

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • Yu. D. Razgulyaeva,
  • A. V. Zaytsev,
  • A. A. Bakibaev

摘要

Abstract

The crystal structure of allobetulin contained in birch bark as a minor component is determined. Allobetulin crystallizes in the monoclinic system in the space group P21, Z = 4. The unit cell parameters are determined as follows: a = 13.2600(9) Å, b = 12.6245(10) Å, c = 15.4702(11) Å; β = 95.425(7)°, V = 2578.1(3) Å3. Allobetulin molecules form a layered crystal packing of supramolecular chains.