Crystal and molecular structure of 3β-hydroxy-5β-estr-8(14)-en-17-one
✍ Scribed by Dr. G. Reck; Dr. G. Schubert; Dr. G. Langbein
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 254 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0232-1300
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✦ Synopsis
Crystal and Molecular Structure of 3/3-hydroxy-5~-estr-8(14)-en-17-one The title compound crystallizes in the orthorhombic space group P2,2,2, with 4 formula units C,,H,,O, in the unit cell. The lattice constants are a = 10.356(2) A, b = 19.743(3) A, and c = 7.487(1) A. The structure was solved by direct methods of phases determination and refined by least-squares calculations to the conventional R = 0.054. The configuration and conformation of the molecule were determined and compared with those of A-8,14-anhydrodigitoxigenin. Die Titelverbindung kristallisiert in der orthorhornbischen Raumgruppe P2,2,2, mit 4 Formeleinheiten CI8&,O, in der Elementarzelle. Die Gitterkonstanten sind a = 10.356(2) ,8,, b = 19.748(3) A und c = 7.487(1) A. Die Struktur wurde mit direkten Methoden der Phasenbestimmung gelost und mit der Methode der kleinsten Quadrate bis zum R-Wert von 0,054 verfeinert. Die Konfiguration und Konformation des Molekuls wurde mit der Rontgenkristallstrukturanalyse beetimmt und mit der des A-8,14-anhydrodigitoxigenin verglichen.
📜 SIMILAR VOLUMES
All solvents and reagents were purified and/or dried before using according to generally accepted procedures, unless otherwise stated. I4CH3I was purchased from New England Nucleor Corp. Prep. HPLC: Micromeritics liquid chromatograph, refractive-index detector. Anal. TLC: F254 TLC plates (Merck). Pr