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Acta Cryst. (2013). E69, o218
[ doi:10.1107/S1600536812051343 ]


M. L. Rivadulla, M. Sene, M. González and B. Covelo

Abstract: The chiral title compound, C19H32O2, contains a [4.3.0]-bicyclic moiety in which the shared C-C bond presents a trans configuration and a side chain in which the C=C double bond shows an E conformation. The conformations of five- and six-membered rings are envelope (with the bridgehead atom bearing the methyl substituent as the flap) and chair, respectively, with a dihedral angle of 4.08 (17)° between the idealized planes of the rings. In the crystal, the molecules are self-assembled via classical O-H...O hydrogen bonds, forming chains along [112]; these chains are linked by weak non-classical C-H...O hydrogen bonds, giving a two-dimensional supramolecular structure parallel to (010). The absolute configuration was established according to the configuration of the starting material.

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