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Acta Cryst. (2013). E69, o1308-o1309  [ doi:10.1107/S1600536813018497 ]

Absolute configuration of (1R,3S,8R,11R)-3,7,7,10-tetramethyltricyclo[,3]dodec-9-en-11-ol

B. Abdoullah, A. Aziz, M. Y. Ait Itto, J.-C. Daran and A. Abdelwahed

Abstract: The absolute configuration of the title compound, C16H26O, was determined as (1R,3S,8R,11R) based mainly on the synthetic pathway but is also implied by the X-ray analysis. The molecule contains fused six- and seven-membered rings. Part of the seven-membered ring was refined as disordered over two sets of sites with the occupancy ratio fixed at 0.86:0.14. The disorder corresponds to a major chair conformation and a minor boat conforation. In the crysyal, O-H...O hydrogen bonds connect the molecules into chains parallel to the a axis.

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