{"title":"Crystal Structure of 3β-Hydroxy-19β,28-Expoxy-18α-Olean (allobetulin)","authors":"Yu. D. Razgulyaeva, A. V. Zaytsev, A. A. Bakibaev","doi":"10.1134/S0022476625010068","DOIUrl":null,"url":null,"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> = 4. The unit cell parameters are determined as follows: <i>a</i> = 13.2600(9) Å, <i>b</i> = 12.6245(10) Å, <i>c</i> = 15.4702(11) Å; β = 95.425(7)°, <i>V</i> = 2578.1(3) Å<sup>3</sup>. Allobetulin molecules form a layered crystal packing of supramolecular chains.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":"66 1","pages":"73 - 77"},"PeriodicalIF":1.2000,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Structural Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0022476625010068","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
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.
期刊介绍：
Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.
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