Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 2 (February 2012)

organic compounds

Acta Cryst. (2012). E68, o317-o318    [ doi:10.1107/S1600536812000037 ]


T. Suwunwong, S. Chantrapromma, C. Karalai, P. Wisitsak and H.-K. Fun

Abstract: In the title chalcone derivative, C16H16O5, the dihedral angle between the furan and benzene rings is 2.06 (17)°. The two meth­oxy groups at the ortho and para positions are essentially coplanar with the benzene ring [C-O-C-C angles = -1.0 (5) and 178.5 (3)°], whereas the third one at the meta position is slightly twisted [C-O-C-C = 9.6 (5)°]. In the crystal, weak C-H...O inter­actions link the mol­ecules into a sheet parallel to (\overline{1}02). An inter­molecular [pi]-[pi] inter­action between the furan and benzene rings is present [centroid-centroid distance = 3.772 (2) Å]. A short C...C contact [3.173 (5) Å] is also observed between neighbouring furan rings.

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