A second monoclinic polymorph of 3β-chlorocholest-5-ene

A second monoclinic polymorph of 3β-chlorocholest-5-ene

The title compound, C27H45Cl, is a second monoclinic polymorph which crystallizes in the space group P21 with four crystallographically independent molecules in the asymmetric unit. The structure was previously reported [Bernal et al. (1940). Philos. Trans. R. Soc. London Ser. B, 239, 135&#8...

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Main Authors: Mohd. Shaheen Khan, Othman Sulaiman, Issam Ahmed Mohamed, Chin Sing Yeap, Hoong-Kun Fun
Format: Article
Language:English
Published: International Union of Crystallography 2010-06-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536810015722
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spelling doaj-cc0c4fa938da413a8c372f2464c9930f2020-11-24T21:25:54ZengInternational Union of CrystallographyActa Crystallographica Section E1600-53682010-06-01666o1249o125010.1107/S1600536810015722A second monoclinic polymorph of 3β-chlorocholest-5-eneMohd. Shaheen KhanOthman SulaimanIssam Ahmed MohamedChin Sing YeapHoong-Kun FunThe title compound, C27H45Cl, is a second monoclinic polymorph which crystallizes in the space group P21 with four crystallographically independent molecules in the asymmetric unit. The structure was previously reported [Bernal et al. (1940). Philos. Trans. R. Soc. London Ser. B, 239, 135–182; Vani & Vijayan (1979). Mol. Cryst. Liq. Cryst. 51, 253–264], also in the space group P21, but with two unique molecules in the asymmetric unit. As in the previously reported structures, rings A and C in the molecule adopt chair conformations with half-chair conformations for rings B and D. The ring junctions B–C and C–D are trans, whereas the junction A–B is quasi-trans. In the crystal structure, molecules are arranged in a head-to-tail fashion along a and are stacked along the b axis. http://scripts.iucr.org/cgi-bin/paper?S1600536810015722
collection DOAJ
language English
format Article
sources DOAJ
author Mohd. Shaheen Khan
Othman Sulaiman
Issam Ahmed Mohamed
Chin Sing Yeap
Hoong-Kun Fun
spellingShingle Mohd. Shaheen Khan
Othman Sulaiman
Issam Ahmed Mohamed
Chin Sing Yeap
Hoong-Kun Fun
A second monoclinic polymorph of 3β-chlorocholest-5-ene
Acta Crystallographica Section E
author_facet Mohd. Shaheen Khan
Othman Sulaiman
Issam Ahmed Mohamed
Chin Sing Yeap
Hoong-Kun Fun
author_sort Mohd. Shaheen Khan
title A second monoclinic polymorph of 3β-chlorocholest-5-ene
title_short A second monoclinic polymorph of 3β-chlorocholest-5-ene
title_full A second monoclinic polymorph of 3β-chlorocholest-5-ene
title_fullStr A second monoclinic polymorph of 3β-chlorocholest-5-ene
title_full_unstemmed A second monoclinic polymorph of 3β-chlorocholest-5-ene
title_sort second monoclinic polymorph of 3β-chlorocholest-5-ene
publisher International Union of Crystallography
series Acta Crystallographica Section E
issn 1600-5368
publishDate 2010-06-01
description The title compound, C27H45Cl, is a second monoclinic polymorph which crystallizes in the space group P21 with four crystallographically independent molecules in the asymmetric unit. The structure was previously reported [Bernal et al. (1940). Philos. Trans. R. Soc. London Ser. B, 239, 135–182; Vani & Vijayan (1979). Mol. Cryst. Liq. Cryst. 51, 253–264], also in the space group P21, but with two unique molecules in the asymmetric unit. As in the previously reported structures, rings A and C in the molecule adopt chair conformations with half-chair conformations for rings B and D. The ring junctions B–C and C–D are trans, whereas the junction A–B is quasi-trans. In the crystal structure, molecules are arranged in a head-to-tail fashion along a and are stacked along the b axis.
url http://scripts.iucr.org/cgi-bin/paper?S1600536810015722
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