The title compound 3,3'-[o-phenylenebis(methyleneoxy)]bis(6-chloroflavone), C(38)H(24)Cl(2)O(6), (I), crystallizes in the monoclinic space group C2/c, with the molecules lying across twofold rotation axes so that there is half a molecule in the asymmetric unit, while the other title compound, 3,3'-propylenedioxybis[6-chloro-2-(2-furyl)-4H-1-benzopyran-4-one], C(29)H(18)Cl(2)O(8), (II), crystallizes in monoclinic space group P2(1)/n with one molecule in the asymmetric unit. In both compounds, the benzopyran moiety is nearly planar, with dihedral angles between the two fused rings of 1.43 (8) degrees in (I), and 2.54 (7) and 3.00 (6) degrees with respect to the benzopyran moieties in the two halves of (II). The furan rings are twisted by 8.3 (1) and 8.4 (1) degrees in the two halves of (II). In both compounds, the molecular structure is stabilized by intramolecular C-H.O hydrogen bonds, while the crystal packing is stabilized by C-H.Cl and C-H.O intermolecular hydrogen bonds in (I) and (II), respectively.
The pyrrolidine ring in the title molecule, C23H21N3O, adopts a half‐chair conformation. In the solid state, C—H⋯N intermolecular hydrogen bonds link inversion‐related molecules, forming cyclic dimers. The structure is further stabilized by weak C—H⋯O hydrogen bonds and van der Waals forces.
In the title compound, C23H18BrNO2S, the bromophenyl group is oriented cis with respect to the indole moiety. The phenylsulfonyl group is nearly perpendicular to the indole ring system, forming a dihedral angle of 84.6 (1)°.
Key indicatorsSingle-crystal X-ray study T = 293 K Mean '(C±C) = 0.003 A Ê R factor = 0.054 wR factor = 0.160 Data-to-parameter ratio = 18.2 For details of how these key indicators were automatically derived from the article, see
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