There are two conformationally similar mol-ecules in the asymmetric unit of he title compound, C18H18O4, in which the dihedral angles between the benzene rings are 23.54 (12) and 31.11 (12)°. In the crystal, C-H⋯π inter-actions (minimum H⋯ring centroid distance = 2.66 Å) link the mol-ecules into a layered structure extending down a.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3647830 | PMC |
http://dx.doi.org/10.1107/S1600536813007964 | DOI Listing |
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