The chalcone derivative (E)-1-(4-fluorophenyl)-3-(4-hydroxy-3-methoxyphenyl)prop-2-en-1-one monohydrate

Abstract

The title compound, C16H13FO3·H2O, has a cis disposition of the carbonyl and olefin bonds about the enone single bond. The arene rings are inclined to one another by 10.05 (6) Å. In the crystal, mol­ecules are linked via O—H⋯O hydrogen bonds involving the water mol­ecules, forming loops which are, in turn, linked via O—H.·O and C—H⋯F hydrogen bonds, forming sheets lying parallel to (103). These networks are linked via π–π inter­actions [centroid–centroid distance = 3.641 (1) Å] involving inversion-related 4-fluoro­phenyl and 4-hy­droxy-3-meth­oxy­phenyl rings.

Crystal structure of (1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one, C17H12Cl2O

“…the figure) are planar with the torsion angle about the C(1)-C(7)-C(8)-C(9) backbone (174.7°) nearly equal to but opposite in sense to that about the C(9)-C(10)-C(11)-C(12) backbone (−173.1°). The C=O bond length (1.220(3) Å) is in the typical range for chalcones [11].…”