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Crystal structure and Hirshfeld surface analysis of dimethyl (1*,3a*,3a *,6a*,9*,9a*)-3a,5,6,9a-tetra-hydro-1,4,9-1,3a:6a,9-di-epoxy-phenalene-2,3-di-carboxyl-ate. | LitMetric
The title di-epoxy-phenalene derivative, CHO, comprises a fused cyclic system containing four five-membered rings (two di-hydro-furan and two tetra-hydro-furan) and one six-membered ring (cyclo-hexa-ne). The five-membered di-hydro-furan and tetra-hydro-furan rings adopt envelope conformations, and the six-membered cyclo-hexane ring adopts a distorted chair conformation. Two methyl carboxyl-ate groups occupy adjacent positions (2- and 3-) on a tetra-hydro-furan ring. In the crystal, two pairs of C-H⋯O hydrogen bonds link the mol-ecules to form inversion dimers, enclosing two (6) ring motifs, that stack along the -axis direction and are arranged in layers parallel to the plane.
Publication Analysis
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