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Abstract
The asymmetric unit of the title compound, C30H48O2, contains two independent molecules, the main difference between them being that the isopropenyl group is rotated by approximately 180°. In each molecule, the fused six-membered rings have chair–chair–chair–chair conformations and the cyclopentane ring adopts an envelope conformation with the C atom bearing the hydroxymethyl group as the flap. All ring junctions are trans-fused. With the exception of one of the methyl groups adjacent to the C=O group, all the methyl groups are in axial positions. The isopropenyl group is equatorial and the hydroxymethyl group is in an axial orientation. In the crystal, weak C—H⋯O interactions link the molecules into chains along [010]. Weak intramolecular C—H⋯O hydrogen bonds are also observed but the hydroxy groups are not involved in hydrogen bonds.
Highlights
The asymmetric unit of the title compound, C30H48O2, contains two independent molecules, the main difference between them being that the isopropenyl group is rotated by approximately 180
With the exception of one of the methyl groups adjacent to the C O group, all the methyl groups are in axial positions
The isopropenyl group is equatorial and the hydroxymethyl group is in an axial orientation
Summary
50-556, Poland, cDepartment of Physics of Crystals, Institute of Physics, University of Silesia, Katowice 40-007, Poland, and dDepartment of Solid State Physics, Institute of Physics, University of Silesia, Katowice 40-007, Poland. The asymmetric unit of the title compound, C30H48O2, contains two independent molecules, the main difference between them being that the isopropenyl group is rotated by approximately 180. The fused sixmembered rings have chair–chair–chair–chair conformations and the cyclopentane ring adopts an envelope conformation with the C atom bearing the hydroxymethyl group as the flap. The isopropenyl group is equatorial and the hydroxymethyl group is in an axial orientation. Weak C—H O interactions link the molecules into chains along [010]. C—H O hydrogen bonds are observed but the hydroxy groups are not involved in hydrogen bonds
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