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Crystal and molecular structure of 17α‐acetoxy‐21‐hydroxy‐1,4‐pregnadiene‐3,20‐dione
Author(s) -
ScharfenbergPfeiffer D.,
Megges R.,
Bohl M.,
Simon K.,
Stopsack H.
Publication year - 1990
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170250210
Subject(s) - orthorhombic crystal system , chemistry , crystal structure , crystallography , molecule , stereochemistry , organic chemistry
The title compound 17α‐acetoxy‐21‐hydroxy‐1,4‐pregnadiene‐3,20‐dione crystallizes in the orthorhombic space group P 2 1 2 1 2 1 with four molecules in the unit cell and the lattice parameters a = 10.950, b = 11.857, c = 15.634 Å. The crystal structure was determined by direct methods and refined by full matrix least squares calculations up to the discrepancy factor R = 0.050. Die Titelverbindung 17α‐Acetoxy‐21‐hydroxy‐1,4‐pregnadien‐3,20‐dion kristallisiert in der orthorhombischen Raumgruppe P 2 1 2 1 2 1 mit vier Molekülen in der Elementarzelle und den Gitterkonstanten a = 10,950, b = 11,857, c = 15,634 Å. Die Kristallstruktur wurde mit direkten Methoden bestimmt und mit der Methode der kleinsten Quadrate bis zu einem R ‐Wert von 0,050 verfeinert.

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