The structure of 1,6-dihydroxy-7,8-dimethoxyxanthone

Vijayalakshmi, J. ; Rajan , S. S. ; Srinivasan, R. (1987) The structure of 1,6-dihydroxy-7,8-dimethoxyxanthone Acta Crystallographica Section C, 43 . pp. 2108-2110. ISSN 0108-2701

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C15H12O6, Mr=288.3, monoclinic, A2/a, a=14.081(4), b=12.397(4), c=16.335(5)Å, β=116.38(7)°, V=2554(1)Å3, Z=8, Dm=1.48(3), Dx=1.50Mgm-3, λ(CoKα)=1.7903Å, μ=1.55mm-1, F(000)=1200, T=298K, R=0.078, wR=0.076 for 1250 independent reflections. The xanthone ring is roughly planar with normal bond lengths and angles, and the molecules in the crystal are stabilized by O—H···O type hydrogen bonds. The planes of the xanthone rings are stacked alternately at distances of 3.50(3) and 5.80(3)Å.

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