Acta Crystallographica Section C

Crystal Structure Communications

Volume 59, Part 6 (June 2003)

organic compounds

Acta Cryst. (2003). C59, o308-o310 [ doi:10.1107/S0108270103007625 ]

9,10-Diphenyl-9,10-epidioxyanthracene and 9,10-dihydro-10,10-dimethoxy-9-phenylanthracen-9-ol

A. Usman, H.-K. Fun, Y. Li and J.-H. Xu

Abstract: 9,10-Diphenyl-9,10-epidioxyanthracene, C₂₆H₁₈O₂, (I), was accidentally used in a photooxygenation reaction that produced 9,10-dihydro-10,10-dimethoxy-9-phenylanthracen-9-ol, C₂₂H₂₀O₃, (II). In both compounds, the phenyl rings are approximately orthogonal to the anthracene moiety. The conformation of the anthracene moiety differs as a result of substitution. Intramolecular C-HO interactions in (I) form two approximately planar S(5) rings in each of the two crystallographically independent molecules. The packing of (I) and (II) consists of molecular dimers stabilized by C-HO interactions and of molecular chains stabilized by O-HO interactions, respectively.

Formula: C₂₆H₁₈O₂ and C₂₂H₂₀O₃


	Structure factor file (CIF format) (321.8 kbytes) Contains datablock I

	Structure factor file (CIF format) (148.0 kbytes) Contains datablock II

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