Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 7 (July 2013)

organic compounds

Acta Cryst. (2013). E69, o1167    [ doi:10.1107/S1600536813017297 ]


X.-Y. Tian and Q.-H. Song

Abstract: The title compound, C28H20O4, was synthesized by a bimolecular Zn-HCl reduction in glacial acetic acid using the meth­oxy-substituted xanthone as a starting material. The crystal structure shows that the 2,2'-meth­oxy­bixanthenyl­idene unit is an E-type conformation anti-folded conformer. The mol­ecule lies on an inversion center. The meth­oxy group is almost coplanar with the attached benzene ring, with a C-O-C-C torsion angle of 179.38 (14)°.

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