In the title compound, C(29)H(22)O(4), the chromene ring is almost planar with a small puckering [0.143 (2) Å]. The crystal structure is stabilized by C-H⋯O and C-H⋯π inter-actions. Edge-to-face (centroid-centroid distances of 3.894 and 3.673 Å) and face-to-face (centroid-centroid distance of 3.460 Å) π-π-ring electron inter-actions are also observed.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2959925 | PMC |
| http://dx.doi.org/10.1107/S160053680803938X | DOI Listing |
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