The asymmetric unit of the title compound, C(22)H(22)O(4), consists of two independent mol-ecules (A and B). The cyclo-hexene rings adopt slightly distorted sofa conformations in both mol-ecules. The dihedral angles between the benzene rings are 74.16 (13) and 71.85 (13)° in mol-ecules A and B, respectively. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into a ribbon-like structure along the b axis. Weak C-H⋯π inter-actions are also observed.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3435819 | PMC |
| http://dx.doi.org/10.1107/S1600536812036446 | DOI Listing |
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