(4aS,4bR,7R,10aS)-3,7-Dimethyl-10a-(propan-2-yl)-1,4,4a,4b,5,6,7,8,10,10 a-decahydrophenanthrene-1,4-dione

Caracelli, I. and Zukerman-Schpector, J. and Lousada Machado, A.T. and Brocksom, T.J. and Lucia Ferreira, M. and Tiekink, E.R.T. (2011) (4aS,4bR,7R,10aS)-3,7-Dimethyl-10a-(propan-2-yl)-1,4,4a,4b,5,6,7,8,10,10 a-decahydrophenanthrene-1,4-dione. Acta Crystallographica Section E: Structure Reports Online, 67 (12). O3192-U498. ISSN 1600-5368,

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In the title compound, C(19)H(26)O(2), the A ring adopts a chair conformation, whereas the B and C rings both adopt distorted half-chair conformations with the quaternary C atom common to both rings lying 0.577 (3) and 0.648 (3) angstrom out of the approximate plane defined by the remaining five C atoms (r.m.s. deviations = 0.1386 and 0.1156 angstrom) for the B and C rings, respectively. Molecules are assembled in the crystal through C-H center dot center dot center dot O interactions involving both carbonyl O atoms, which lead to supramolecular chains aligned along the b axis.

Item Type: Article
Subjects: Q Science > QC Physics
Depositing User: MR Faizal II H
Date Deposited: 07 Nov 2015 02:23
Last Modified: 31 Jan 2019 01:46
URI: http://eprints.um.edu.my/id/eprint/14630

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