Acta Cryst. (2013). E69, o1261 [ doi:10.1107/S160053681301903X ]
Abstract: The title compound, C17H26Br2, was synthesized from -himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1H-benzocycloheptene), which was isolated from the essential oil of the Atlas cedar (Cedrus Atlantica). The asymmetric unit contains two independent molecules with similar conformations. Each molecule is built up from fused six- and seven-membered rings and two appended three-membered rings. In both molecules, the six-membered ring has a screw boat conformation, whereas the seven-membered ring displays a boat conformation. No specific intermolecular interactions were discerned in the crystal packing.
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