Kratko priopćenje

The Crystal and Molecular Structure of 5α-Cholestane-3,6-dione

Bela Ribar ; Institute of Physics, Faculty of Sciences, Trg Dositeja Obradovića 4, 21000 Novi Sad, Yugoslavia
Agneš Kapor ; Institute of Physics, Faculty of Sciences, Trg Dositeja Obradovića 4, 21000 Novi Sad, Yugoslavia
Csaba Meszaros ; Institute of Physics, Faculty of Sciences, Trg Dositeja Obradovića 4, 21000 Novi Sad, Yugoslavia
Dušan Miljković ; Institute of Chemistry, Faculty of Sciences, Trg Dositeja Obradovića 6, Novi Sad, Yugoslavia
Zvonimir Sakač ; Institute of Chemistry, Faculty of Sciences, Trg Dositeja Obradovića 6, Novi Sad, Yugoslavia
Peter Engel ; Laboratory for Chemical and Mineralogiccd Crystallography, University of Berne, Freiestrasse 3, 3012 Berne, Switzerland

Sažetak

The crystals of 5a-cholestane-3,6-dione (C27H44O2) are monoclinic, space group P2i with a= 1.9695(3), 6-0.7593(3), c = 0.8176(6) run, /?=92.78(3)°, V= 1.221(1) nm3 and Z=2. The structure was solved by the direct method and refined by the least squares technique to a conventional R = 0.097 for 2220 unique diffractometer observations. Ring D assumed an envelope shape. The side chain equatorially attached to C17 assumed open »zig-zag« conformation.

Ključne riječi

Hrčak ID:

137315

URI

https://hrcak.srce.hr/137315

Datum izdavanja:

15.10.1991.

Posjeta: 823 *